Wild Kratts: Prehistoric is a spin-off of the PBS Kids series, Wild Kratts. The series consists of the zoologist brothers Chris and Martin Kratt, along with the rest of the Wild Kratts team traveling through various geological time periods using their Tortunga ship as their time machine and encountered dinosaurs and other prehistoric animals in each time period. Using their Creature Power of many of them, the Kratt brothers and their team witness and follow the lives of these long extinct animals and learn about them.


After traveling around the world to witness and follow the lives of any animals and protecting them from harm such as Zach and the other villains, using their Creature Power, zoologist and conservationist brothers Chris and Martin Kratt, along with their friends Aviva, Koki, and Jimmy Z, are back and this time, they are going on an epic animal mission and adventure that would take them back hundreds, thousands, and even millions of years into the past as after the main events of Wild Kratts, Aviva has created the Totunga ship to be able to time travel that would take them into any period or era in Earth's long history and so they travel into three geological era that make up the Phanerozoic eon:

  • The Paleozoic era, the "Age of Early Life", the era when early, complex multicellular organisms such as animals and plants thrived and evolved in the oceans, giving rise to many groups (both extinct and living) and eventually moved out of the water and onto dry land (such as tetrapods) and evolved and thrived. The era was marked by two major evolutionary events from beginning to end: the Cambrian Explosion (when animal life became complex for the first time and many modern phyla's of animals evolved from a common ancestor during this event, which began around 542 million years ago) and the Permian-Triassic Mass Extinction aka the "Great Dying (when nearly all life on Earth such as 95% of all marine life and 70% of land vertebrates were wiped out in the biggest and most catastrophic mass extinction in our planet's history, 252 million years ago).
  • The Mesozoic era, the "Age of Reptiles", the time when dinosaurs and other sauropsids, big and small and both predator and prey, were the dominant animal species on land, sea, and air.
  • The Cenozoic era, the "Age of Mammals", when mammals dominated the world, giving rise to many modern animals including humans, while our planet was becoming more familiar than ever for the last 66 million years.

Using the time traveling Tortunga HQ, the Wild Kratts travel to any period in prehistory, encountering dinosaurs and other prehistoric animals, and, like they did in Wild Kratts, using their Creature Power of them, they'll follow the lives of these amazing animals, learning how they live, fought, survive, nurture their young, why they became extinct, how they're related to modern animals, and how they were so successful. In addition to facing deadly, awesome predators such as Tyrannosaurus rex the King of the Dinosaurs, the Saber-toothed cat Smilodon, the armored fish Dunkleosteus, and the bizarre Anomalocaris one of the first large super predators on Earth, the Kratt brothers and the rest of the Wild Kratts team would also have to face, battle, and brave natural elements such asteroid impact events, erupting volcanoes, ice ages, and sticky tar pits. But they also have to face and battle their villainous enemies that they did in Wild Kratts: Zachary "Zach" Varmitech, an evil robotic inventor, the sadistic Chef Gaston Gourmand, the cruel and greedy fashion-designer Donita Donata and her bumbling henchman Dabio, and the careless Paisley Pavers are planning to infiltrate the Wild Kratts' time traveling Tortunga and planning to capture any prehistoric creature for whatever villainous deed they're doing (or in Paisley Pavers' case, wipe out any habitat to build a shopping mall or factory) and so using their Creature Powers, the brothers and their team must stop them and rescue the animals, as well as stopping them from altering the Present. So lets take a journey back in time and join along with them in- Wild Kratts: Prehistoric!


Note: This is the animation sequences listed here. Animals in bald are the featured creatures

Episode 1: Tyrannosaurus Wrecks

Setting and Age: Montana (Hell Creek Formation), 66 million BC (Latest Maastrichtian stage of the Late Cretaceous)

Plot: The Kratts and their crew travel to Montana at the very end of the age of dinosaurs (30 years before the K-Pg event) to encountered and witnessed the King of the Dinosaurs, Tyrannosaurus rex and having the Creature Power of this theropod, while noticing its hunting and even maternal behavior. Meanwhile, Zachary "Zach" Varmitech, after learning that the Wild Kratts are traveling back to the Mesozoic era and encountering dinosaurs, decides to sneak in and capture a T. rex for himself, but he's no match against the Kratt's T. rex Power and of course, the king of the dinosaurs itself.

Animals: Tyrannosaurus rex, Triceratops prorsus, Edmontosaurus annectens, Dakotaraptor steini, Thescelosaurus neglectus, Anzu wylei, Didelphodon vorax, Borealosuchus sternbergi, Avisaurus archibaldi, Palaeosaniwa sp., unnamed azhdarchid, and "Struthiomimus" sedens.

Episode 2: A Mammoth Adventure

Setting and Age: Siberia (Mammoth Steppe), 100,000 BC (Pleistocene epoch)

Plot: The Kratts and the crew travel to Siberia during the ice age and witnessed a herd of mammoths. So the brothers, using their Mammoth Power, follows and joins the herd to notice their behavior, how similar they are to elephants, and how they were adapted survive the harsh cold ice age winters.

Animals: Woolly mammoth (Mammuthus primigenius), Woolly rhinoceros (Coelodonta antiquus), Megaloceros giganteus, Eurasian cave lion (Panthera spelaea), Steppe Bison (Bison priscus), Cave Wolf (Canis lupus spelaeus), and Cave Bear (Ursus spelaeus spelaeus).

Episode 3: Arthropleura Town

Setting and Age: Nova Scotia (Joggins Cliffs), 310 million years ago (Moscovian stage of the Pennsylvanian epoch of the Late Carboniferous)

Plot: The brothers and their crew travel to the coal swamps of the Carboniferous period more than 300 million years ago when lush swampy forests were dominated by licophytes (relatives of today's clubmosses), atmospheric oxygen levels were 40% higher than today's, and insects and other arthropods grew into gigantic proportions, including Arthropleura armata, a distant relative of modern millipedes and centipedes that grew nearly 10 feet long, making the largest land arthropod that ever lived. The Kratts, with their Creature Power of Arthropleura, follow and learn about this huge creature and the other animals living around it, including Hylonomus, one of the earliest-known reptiles ever to evolve and invented the amniotic egg, where babies developed inside a hard waterproof shell.

Animals: Arthropleura armata, Dendrerpeton acadianum, unnamed megascopteron (dubbed giant dragonflies), Hylonomus lyelli, unnamed scorpion, and Graeophonus sp.

Episode 4: Jurassic Kratts

Setting and Age: Colorado (Morrison Formation),153 million BC (Late Kimmeridgian stage of the Late Jurassic)

Plot: The Kratts and their crew travel to the American West during the Late Jurassic period and witnessed the large varieties of huge sauropod dinosaurs ranging from Brachiosaurus to Diplodocus roaming the region and awed about their incredible sizes. So the Kratts became ginormous in their Diplodocus Power and noticing that their large sizes, as well as Diplodocus's whip-like tail, is enough to deter predators like the Allosaurus that threatened a young Brachiosaurus.

Animals: Brachiosaurus altithorax, Diplodocus hallorum, Brontosaurus excelsus, Supersaurus vivianae, Camarasaurus lentus, Stegosaurus stenops, Allosaurus jimmadseni, Camptosaurus dispar, Nanosaurus agilis, Ornitholestes hermanni, Hallopus victor, Harpactognathus gentryii, and Fruitafossor windscheffeli.

Episode 5: The Sabertooth Smile

Setting and Age: California (Rancho La Brea Tar Pits, Los Angeles), 18,000 BC (Late Pleistocene epoch)

Plot: The Kratts and their crew travel to ice age California to witnessed the famous sabre-toothed cat Smilodon and its behavior and their use of their saber-teeth. Meanwhile, Zach, with his own time machine, returns and plans to capture the sabertooths. Using their Smilodon Power, the brothers rescue the captured sabertooths and stop Zach.

Animals: Smilodon fatalis, Columbian mammoth (Mammuthus columbi), Ancient bison (Bison antiquus), Shasta ground sloth (Nothrotheriops shastensis),Teratornis merriami, and Camelops hesternus.

Episode 6: Tale of a Sail

Setting and Age: Texas (Texas Red Beds), 285 million BC (Artinskian stage of the Early Permian)

Plot: The Kratts and the crew travel to Texas during the Permian period and witnessed the sailback pelycosaurs such as the famous Dimetrodon and so the two brothers use their Dimetrodon Power to see how these synapsids (or proto-mammals) used their sails.

Animals: Dimetrodon grandis, Edaphosaurus boanerges, Eryops megacephalus, Diplocaulus magnicornis, Secodontosaurus obtusidens, Seymouria baylorensis, Sphenacodon ferox, and Xenacanthus texensis.

Episode 7: Dinobirds of a Feather

Setting and Age: Liaoning Province, China (Yixian Formation), 124.6 million BC (Early Aptian stage of the Early Cretaceous)

Plot: The Kratts and their crew travel to the forests of Early Cretaceous China and encountered a variety of feathered dinosaurs that inhabited the area. The duo used their Creature Power of some of the feathered dinos to determine what the purpose of feathers were for and what they relate to modern birds and their evolutionary relationship with them. Meanwhile, fashion designer Donita Donata's henchman, Dabio, sneaks in and begins capturing the feathered dinosaurs for plans to make a gown made of their feathers for Donita. The crew must stop them and rescued the feathered dinosaurs.

Animals: Sinosauropteryx prima, Sinornithosaurus milleni, Yutyrannus huali, Beipiaosaurus inexpectus, Caudipteryx zoui, Sinocalliopteryx gigas, Confuciusornis sanctus, Psittacosaurus lujiatunensis, Dongbeititan dongi, Xianglong zhaoi, Eosipterus yangi, and Hyphalosaurus baitaigouensis.

Episode 8: Fly Griffinfly, Fly

Setting and Age: Oklahoma (Wellington Formation), 285 million BC (Artinskian stage of the Early Permian)

Plot: Kratts, with their Dragonfly Power, fly with the giant dragonfly-like Meganeuropsis, the largest insect that ever flew.

Animals: Meganeuropsis permiana, Moravis grandis (descibed as palaeodictyoptera), Diplocaulus magnicornis, and Edaphosaurus cruciger.

Episode 9: Lair of the Mega-shark

Setting and Age: Peru (Pisco Formation), 13 million BC (Serravallian stage of the Mid Miocene epoch of the Neogene)

Plot: The Kratt brothers, using the remora they used in "Stuck on Sharks", decided to follow and learn about the largest predatory fish: a giant shark called Megalodon.

Animals: Otodus megalodon, Livyatan melvelli, Pacifichelys urbinai, Thalassocnus antiquus, Odobenocetops peruvianus, Pelagornis sp., Piscobalaena nana, Piscogavialis jugaliperforatus, and Sardinops sp.

Episode 10: Remember the Titans

Setting and Age: Argentina (Huincul Formation), 95 million BC (Mid Cenomanian stage of the Late Cretaceous)

Plot: The Wild Kratts travel to Patagonia, Argentina nearly 100 million years to the Late Cretaceous to witness and learn about one of the largest land animals that ever walked the Earth, Argentinosaurus. Using their Argentinosaurus Power and growing enormous, the Kratt brothers learn about the life history of these humongous dinosaurs from tiny babies hatching from football-sized eggs to huge animals weighing as much as around 30 elephants and grew nearly half the length of a football field, as well as preventing themselves from predators like Mapusaurus, one of the largest land predators. Meanwhile, Chef Gaston Gourmand sneaks in and plans to steal dinosaur eggs to make an omelet for his television show, but the Kratts and their crew managed to stop him by sabotaging his stolen eggs via swiping them with basketballs and soccerballs, leading into Gourmand's onscreen humiliation in the end.

Animals: Argentinosaurus hunculensis, Mapusaurus roseae, and Skorpiovenator bustingorryi.

Episode 11: The Lake of the Big Snake

Setting and Age: Columbia (Cerrejón Formation), 60 million BC (Selandian stage of the Mid Paleocene epoch of the Paleogene)

Plot: The Wild Kratts traveled back to Columbia, 4 million years after the non-avian dinosaurs' demise to witness and discover the giant reptiles that thrived there, such as the world's largest snake, Titanoboa. Meanwhile, Donita Donata and her henchman traveled there with her own time machine and plan to make the skin of Titanoboa into boots and shoes. Using their Python Power, the duo must rescue Titanoboa and stop Donita.

Animals: Titanoboa cerrejonensis, Acherontisuchus guajiraensis, Carbonemys cofrinii, Puentemys mushaisaensis, Cerrejonemys wayuunaiki, and Cerrejonisuchus improcerus.

Episode 12: The River of Giants

Setting and Age: Morocco (Kem Kem Beds), 98 million BC (Early Cenomanian stage of the Late Cretaceous)

Plot: The Kratt brothers and their crew travel to the swampy wetlands of Late Cretaceous North Africa to search, witness, and learn about the legendary Spinosaurus, one of the largest meat-eating dinosaurs, rivaling T. rex in size, and one of the few non-avian dinosaur species that's known to have a semi-aquatic lifestyle. Meanwhile, Zach sneaks in and plans to exploit the Spinosaurus, but the Kratts, using their Spinosaurus Power, managed to stop him, before he does.

Animals: Spinosaurus aegyptiacus, Carcharodontosaurus saharicus, Rugops sp., Rebbachisaurus garasbae, Alanqa saharica, Afrotapejara zhouri, Laganosuchus maghrebensisis, Elosuchus cherifiensis, Retodus tuberculatus, Mawsonia gigas, and Onchopristis dunklei.

Episode 13: Fish Out of Water

Setting and Age: Ellesmere Island, Canadian Arctic, 377 million BC (Frasnian stage of the Late Devonian) and Pennsylvania (Catskill Formation), 360 million BC (Famennian stage of the Late Devonian)

Plot: The Wild Kratts travel throughout the Devonian period to witness the evolutionary story of when lobe-finned fish or sarcopterygians have their fins morphed to limbs and begins to crawl out of the water, giving rise to the limbed vertebrates or tetrapods. The Kratt brothers used their Creature Power to become these primitive fishes starting with Tiktaalik and see how they managed to move out of the water and onto dry land.

Animals: Tiktaalik roseae, Hynerpeton bassetti, Hyneria lindae, Turriaspis elektor, Ctenacanthus sp., Orsadesmus sp., Eusthenopteron foordi (Picture only), Panderichthys rhombolepis (Picture Only), Ichthyostega stensioei (Picture Only), and Acanthostega gunnari (Picture Only).

Episode 14: Move over Moa

Setting and Age: South Island, New Zealand, 1500 BC

Plot: The Wild Kratts travel to prehistoric New Zealand and witnessed the unique, splendid isolated fauna that mostly dominated by large flightless birds, including the giant moa birds that stood over 11 feet tall, and, up until the arrival of humans and the stoats, rats, and other animals they brought in, there were no land bound mammals native to New Zealand except bats. They also encountered the top predator of the area back then, the Haast's eagle, one of the largest eagles with a wingspan of nearly 10 feet and talons up to 2.42 inches. But things take a turn for the worse as Gourmand returns, traps the crew as revenge for humiliating him, and plans to hunt and capture a moa to make a huge record-breaking turkey out of it, but luckily, this backfires as the Kratts and their crew managed to escape, rescues the captured moa using their Moa Power, and stops the sadistic chef which ends with Gourmand getting chased and attacked by the Haast's eagle and then being end up in one of his own traps.

Animals: South Island Giant Moa (Dinornis robustus), Haast's Eagle (Hieraaetus moorei), Huia (Heteralocha acutirostris), New Zealand Kaka (Nestor meridionalis), and Tui (Prosthemadera novaeseelandiae).

Episode 15: Velociraptor Roundup

Setting and Age: Mongolia (Djadochta Formation), 75 million BC (Late Campanian stage of the Late Cretaceous)

Plot: The Wild Kratts head to the Gobi Desert of Mongolia, 75 million years ago to search and witness the Velociraptor, the most famous of the "raptor" dinosaurs and much smaller and more avian-like than what Jurassic Park portrays. At night, the Kratt brothers in Velociraptor Power watches a pack of these dinosaurs out hunting a herd of Protoceratops. Zach, meanwhile, is planning to capture the Velociraptor pack for his own, but these parave theropod dinosaurs were swifter, deadlier, and cunning. So the Kratts, in their Velociraptor Power, rescues the captured dinosaurs and stops Zach.

Animals: Velociraptor mongoliensis, Protoceratops andrewsi, Pinacosaurus grangeri, Halszkaraptor escuilliei, and Zalambdalestes lechei.

Episode 16: To the Cretaceous Seven Seas

Setting and Age: Kansas (Niobrarra Formation), 83 million years ago (Early Campanian stage of the Late Cretaceous)

Plot: The Wild Kratts travel to Late Cretaceous times when sea levels were a lot higher than they are now and North America was split into two by a great shallow inland sea known as the Western Interior Seaway and takes a dip and explore there to discover and encounter the varieties of marine life. Here, they encountered a Dolichorhynchops Aviva and the brothers befriended they named Dolly and with their Creature Power of the plesiosaur, the Kratts swim and explore with Dolly along the ancient seaway, but this is a dangerous mission as the waters were jammed packed with predators such as the fast-swimming predatory ray-finned fish Xiphactinus, the Ginsu shark Cretoxyrhina mantelli, and the apex predator of the waters, the giant, 45-foot marine reptile or mosasaur Tylosaurus.

Animals: Dolichorynchops osborni, Tylosaurus proriger, Xiphactinus audux, Cretoxyrhina mantelli, Gillicus arcuatus, Protostega gigas, Clidastes propython, Bonnerichthys gladius, Styxosaurus snowii, Protosphyraena perniciosa, Hesperornis regalis, Bananogmius ellisensis, Enchodus dirus, Tusoteuthis longa, Baculites gilberti, Geosternbergia sternbergi, and Claosaurus agilis.

Episode 17: Permian Kratts

Age and Setting: Russia (Sokokli Faunal Assembledge), 255 million BC (Wuchiapingian stage of the Late Permian)

Plot: The Kratt brothers and their team travel to Russia during the Late Permian period (3 million years before the Great Dying) to witness and discover the protomammals that dominated the region along with parieasaurs and large amphibians. The brothers used their Creature Power of Scutosaurus to graze along the group and used their scutes to protect themselves from predators such as the 11.5-foot gorgonopsian protomammal Inostrancevia with its 5.9-inch saber-toothed canines. Zach, meanwhile, is planning to capture the Inostrancevia to used them as his guard dogs and the Kratts must stop him.

Animals: Inostrancevia alexandri, Scutosaurus karpinskii, Vivaxosaurus trautscholdi, Dvinia prima, and Chroniosuchus licharevi.

Episode 18: Going Glyptodon

Age and Setting: Uruguay, 50,000 BC (Late Pleistocene epoch)

Plot: The Kratts and their crew travel to Pleistocene South America to witness and discover the giant glypdodonts, relatives of armadillos that grew about the size of a Volkswagen Beatle with huge, rounded dome-like shells and club-like tails. The Kratt brothers used their Glyptodon Power to learn how well-armored and tough these big mammals were.

Animals: Glyptodon clavipes, Doedicurus clavicaudatus, Smilodon populator, Macrauchenia patagonica, Jaguar (Panthera onca), Hippidion saldiasi, and Glyptotherium texanum (Picture only).

Episode 19: Fly like a Pterosaur

Age and Setting: Kansas (Niobrara Formation), 85 million BC (Santonian stage of the Late Cretaceous)

Plot: In this first part of the "Fly like a Pterosaur" series, the Wild Kratts travel to the shores of the Western Interior Seaway to fly with Pteranodon using their Pterosaur Power.

Animals: Pteranodon longiceps, Nyctosaurus gracilis, Ichthyornis dispar, Tylosaurus proriger, Cretoxyrhina mantelli, Protosphyraena perniciosa, Pachyrhizodus caninus, Kansius sternbergi, and Caproberyx sp.

Episode 20: Triceratops Trouble

Age and Setting: Montana (Hell Creek Formation), 66 million BC (Latest Maastrichtian stage of the Late Cretaceous)

Plot: The Wild Kratts crew returns to Montana 66 million years ago to witness the behavior of the famous and iconic three-horn, Triceratops. But unfortunately, things did not go as planned as the Kratt brothers and their crew finds a lone baby Triceratops they befriended named Topsy who was separated from his family due to a Tyrannosaurus rex encounter. So using their Triceratops Power, the Kratts must return the baby horned dinosaur to his family and protect him from any dangers lurking around, including the T. rex .

Animals: Triceratops prorsus, Tyrannosaurus rex, Anzu wylie, Acheroraptor temertyorum, Thescelosaurus neglectus, Avisaurus archibaldi, Didelphodon vorax, Borealosuchus sternbergi, unnamed azhdarchid, Trierarchuncus prairiensis, Cimolestes incisus, Meniscoessus robustus, and Triceratops horridus (Picture Only).

Episode 21: Beware the Tar

Age and Setting: California (La Brea tar pits), 18,000 BC (Late Pleistocene epoch)

Plot: The Wild Kratts crew returns to ice age Los Angeles California to witness the megafauna of the area, starting with the dire wolves that's common in the area using their Wolf Power. But things go disastrously wrong as Paisley Paver snuck in and planning to clear the area to make shopping centers and have the Tortunga HQ to get stuck in the tar pits, leaving them trapped. So the brothers must stop Paisley before its too late, while Aviva and the rest of the team try to get their ship out of the tar pits. Along the way, the duo comes across the various predators of ice age California such as the sabre-toothed cat Smilodon, the American lion, and the biggest of them, the Giant short-faced bear. Using their Wolf Power, the Kratts and the Dire wolf pack managed to stop Paisley, while the rest of the crew used some Columbian mammoths to successfully free their ship from the tar.

Animals: Dire wolf (Canis dirus), Smilodon fatalis, Columbian mammoth (Mammuthus columbi), American lion (Panthera atrox), Giant short-faced bear (Arctodus simus), Ancient bison (Bison antiquus), Western horse (Equus occidentalis), Shasta ground sloth (Nothrotheriops shastensis),Teratornis merriami, and Camelops hesternus.

Episode 22: Devonian Jaws

Age and Setting: Ohio (Cleveland Shale), 360 million BC (Famennian stage of the Late Devonian)

Plot: The Wild Kratts traveled to the Devonian period, also known as the Age of Fishes, when armored fish known as placoderms dominated the waters and occupy niches that would later be filled by the sharks and bony ray-finned fish after their extinction at the end of that period and come face to face with none other than the king of the Devonian, Dunkleosteus, a killer whale-sized predatory placoderm fish with powerful, razor-sharp serrated-edged, teeth-like jaws designed to cut, crush, and kill its prey within seconds, including other armored fish (such as even their own kind) and the early sharks that were very puny in comparison. Using their cages and the Creature Power of Dunkleosteus, the Kratts and the crew must discover and learn about the power and ferocity of Dunkleosteus and its jaws and how it took predation to a whole new level, but this mission would be dangerous and challenging.

Animals: Dunkleosteus terrelli, Titanichthys agassizi, Gymnotrachelus hydei, Cladoselache fyleri, Stenosteus glaber, Bothriolepis canadensis (Picture Only), Materpiscus attenboroughi (Picture Only), and Coccosteus cuspidatus (Picture Only).

Episode 23: The Four-winged Kratts

Age and Setting: Liaoning Province, China (Jiufotang Formation), 120 million BC (Early Aptian stage of the Early Cretaceous)

Plot: The Wild Kratts travel to the forests of Early Cretaceous China to witness the flying, four-winged feathered raptor dinosaur, Microraptor. Using their Microraptor Power, the brothers managed to fly around with this dromaeosaur theropod. But things take a turn for the worse as Donita Donata and Dabio sneaks in and captures almost all the Microraptors to make them into fashion-designs. So the Kratts using their Microraptor Power, as well as the Microraptor they've befriended named Mikey must rescue the little dinosaurs from the fashion designers.

Animals: Microraptor gui, Sinornis santensis, Sinotyrannus kazuoensis, Yanornis martini, Yixianornis grabaui, Longipteryx chaoyangensis, Guidraco venator, Liaoningopterus gui, Ikrandraco avatar, Liaoconodon hui, and Velociraptor mongoliensis (Picture Only).

Episode 24: Mastodon Madness

Age and Setting: Ohio, 15,000 BC (Late Pleistocene epoch)

Plot: The Wild Kratts crew traveled to Ohio during the last ice age to witness the American mastodon, giant beavers, and other megafauna of the area. Using their Mastodon Power, Chris and Martin witness the mastodon, their behavior, and how they differed from mammoths. Zach, meanwhile, returns and captures a mother mastodon, separating her calf, and plans to use the proboscidean for his experiment. So the Kratt brothers, using their Mastodon Power, must stop Zach, rescue the mastodon, and return to her baby.

Animals: American mastodon (Mammut americana), Castoroides ohioensis, Stag-moose (Cervalces scotti), flat-headed peccary (Platygonus compressus), cougar (Puma concolor), Canadian geese (Branta canadensis), and Woolly mammoth (Mammuthus primigenius) (Picture Only).

Episode 25: Tale of a Spiketail

Age and Setting: Colorado (Morrisson Formation), 150 million BC (Early Tithonian stage of the Late Jurassic)

Plot: The Kratts and their crew returns to the American Midwest during the Late Jurassic period to witness the famous armored-plated dinosaur, Stegosaurus. Using their Stegosaurus Power, the duo follows a male Stegosaurus they name Spike and witness and learn the purpose of the dinosaur's plates on its back as well as the action and purpose of their spikes or thagomizers on the end of their tails as they and Spike ward off an Allosaurus that threatened a young Stegosaurus.

Animals: Stegosaurus stenops, Camptosaurus dispar, Allosaurus fragilis, Ceratosaurus nasicornis, Fruitadens haagarorum, Barosaurus lentus, Camarasaurus supremus, Mesadactylus ornithosphyos, Eutretauranosuchus delfsi, and Laolestes grandis.

Episode 26: Digging with Diictodon

Age and Setting: South Africa (Tropidostoma Assemblage Zone, Teekloof Formation), 256 million BC (Wuchiapingian stage of the Late Permian)

Plot: The Wild Kratts traveled to South Africa during the Late Permian period to witness the wide variety of synapsids or protomammals that lived there. There, they come across Diictodon, a dicynodont protomammal that lives in burrows and named it Diggy. Using their Creature Power of the Diictodon, the Kratt brothers go digging into the burrows and meet up with the little dicynodont, his mate, and babies. When a Gorgonops arrives and threatens the Diictodon family, Diggy gets caught between rocks and unable to reach to his mate and babies. The Kratts in their Diictodon Power must rescue Diggy before he's eaten.

Animals: Diictodon feliceps, Gorgonops torvus, Procynosuchus delaharpeae, Rhinesuchus whaitsi, and Parieasaurus serridens.

Episode 27: The Hulks of Down Under

Age and Setting: Australia, 65'000 BC (Late Pleistocene epoch)

Plot: The Wild Kratts travel to Australia 65'000 years ago to witness the large marsupials and other megafauna of the area, thriving long before humans and later dingoes arrive. There, the crew encountered various giants like the largest marsupial of all, Diprotodon a wombat the size of a hippopotamus, Procoptodon a large species of kangaroo that dwarfs today's Red kangaroo, and a host of predators like the Marsupial lion Thylacoleo and the Giant ripper lizard Varanus priscus the largest land lizard that ever lived. The brothers used their Creature Power of some of these giants whilst facing the areas harsh conditions and the deadly predators.

Animals: Diprotodon optatum, Procoptodon goliah, Thylacoleo carnifex, Varanus priscus, Thylacinus cynocephalus, Genyornis newtoni, Dromornis stirtoni, Quinkania fortirostrum, and Wonambi naracoortensis.

Episode 28: Dinosaur Nursery

Setting and Age: Montana (Two Medicine Formation), 76.7 million BC (Mid Campanian stage of the Late Cretaceous)

Plot: The Wild Kratts travel to Montana more than 76 million years to the Late Cretaceous period to witness the maternal behavior of the duck-billed hadrosaur, Maiasaura, who's discovery in the 1970's shed new light on the social and family of dinosaurs. Using their Creature Power of Maiasaura, Chris and Martin follows the lives of these dinosaurs (including their mother they named Marian) and how caring they are. But things did not go as planned as the Wild Kratts not only faced predators like Bambiraptor and Daspletosaurus, but a huge volcano that's threatened to erupt and kill the maiasaur family. So they must rescue the hadrosaurs from the ash, before its too late.

Animals: Maiasaura peeblesorum, Stenonychosaurus sp., Bambiraptor feinbergi, Daspletosaurus horneri, Cimexomys judithae, Montanazhdarcho minor, and Palaeosaniwa canadensis.

Episode 29: Land of the Mega-Mammal

Setting and Age: Mongolia (Hsanda Gol), 31 million BC (Rupelian stage of the Oligocene epoch)

Plot: The Kratt brothers and the rest of the Wild Kratts traveled to Asia almost 30 million years ago to the Oligocene epoch and witness and encounter many large mammals, including the giant, 16-foot high, 20 ton, hornless rhinoceros-relative Paraceratherium, one of the largest land mammals that ever existed and one of the largest land animals that ever walked the earth since the days of the dinosaurs. Chris and Martin, using their Paraceratherium Power, follows a mother Paraceratherium and a baby they named Percy to learn about its size, its feeding, and its behavior, whilst encountering a host of early carnivoran mammals such as the primitive bear Amphicyonodon and Palaeoprionodon a feliform related to cats, hyenas, mongooses, and other related taxa, as well as the vicious ceodont Hyaenodon gigas. Zach, meanwhile, and his robots arrives in his hand-held time machine and capture Percy's mother for an experiment. So the Kratts, using their Paraceratherium Power, must rescue Percy's mother and return to her baby and stop Zach.

Animals: Paraceratherium transouralicum, Hyaenodon gigas, Ochotonolagus argyropuloi, Palaeoprionodon gracilis, Amphicynodon teilhardi, and Cynodictis elegans.

Episode 30: Dinosaur Dawn

Age and Setting: Argentina (Ischigualasto Formation), 231.4 million BC (Carnian stage of the Late Triassic)

Plot: The Wild Kratts traveled to the arid landscape of Argentina more than 230 million years to the Triassic period, when reptiles diversified as the Earth recovered from the Great Dying that occurred around 20 million years earlier and among them were some of the earliest-known dinosaurs that evolved from these reptilian survivors. When witnessing an Eoraptor, one of the earliest of dinosaurs, that they named Eden, Chris and Martin used their Creature Power of Eoraptor to follow the life of Eden and learn how early dinosaurs thrived and survived the Triassic world, what advantages they had over most of their contemporaries, and what allowed dinosaurs to took off and became the dominant animals of the Mesozoic era, whilst evading the large predators of the area, such as Saurosuchus a 23-foot pseudosuchian.

Animals: Eoraptor lunensis, Eodromaeus murphi, Saurosuchus galilei, Ischigualastia jenseni, Hyperodapedon sanjuanensis, Exaeretodon argentinus, Proterochampsa barrionuevoi, Aetosauroides scagliai, and Herrerasaurus ischigualastensis (Mentioned and Picture Only).

Note: There's also a sequence in this episode where Chris and Martin explains to the crew about the origin of dinosaurs and how early dinosaurs like Eoraptor gave rise to the many diverse ginormous, bizarre, fearsome, and unique dinosaurs (including modern birds) in the Tortunga that features a chart that besides Eoraptor and Herrerasaurus, also shows Prorotodactylus mirus (Photograph of footprints and Speculative Picture Only), Dromomeron romeri, Marasuchus lilloensis, Asilisaurus kongwe, Ixalerpeton polesinensis, Nyasasaurus parringtoni, Buriolestes schultzi, Tawa hallae, Plateosaurus engelhardti, Dilophosaurus wetherill, Scelidosaurus harrisonii, Heterodontosaurus tucki, Shunosaurus lii, Proceratosaurus bradleyi, Megalosaurus bucklandii, Anchiornis huxleyi, Ambopteryx longibrachium, Allosaurus fragilis, Stegosaurus stenops, Apatosaurus ajax, Giraffatitan brancai, Archaeopteryx lithographica, Amargasaurus cazaui, Utahraptor ostrommaysorum, Iguanodon bernissartensis, Confuciusornis sanctus, Psittacosaurus lujiatunensis, Sinosauropteryx prima, Microraptor gui, Sauropelta edwardsorum, Patagotitan mayorum, Spinosaurus aegyptiacus, Giganotosaurus carolinii, Gigantoraptor erlianensis, Nothronychus mckinleyi, Ichthyornis dispar, Hesperornis regalis, Maiasaura peeblesorum, Stenonychosaurus inequalis, Struthiomimus altus, Euoplocephalus tatus, Parasaurolophus walkeri, Centrosaurus apertus, Velociraptor mongoliensis, Shuvuuia deserti, Carnotaurus sastrei, Vegavis iaai, Pachycephalosaurus wyomingensis, Triceratops prorsus, Tyrannosaurus rex, Indian peafowl (Pavo cristatus), Wild turkey (Meleagris gallopavo), Canada goose (Branta canadensis), Greater flamingo (Phoenicopterus roseus), Atlantic puffin (Fratercula arctica), Brown pelican (Pelecanus occidentalis), Emperor penguin (Aptenodytes forsteri), Great blue heron (Ardea herodias), King vulture (Sarcoramphus papa), Peregrine falcon (Falco peregrinus), Great horned owl (Bubo virginianus), Laughing kookaburra (Dacelo novaeguineae), Sulphur-crested cockatoo (Cacatua galerita), Scarlet macaw (Ara macao), Blue-and-yellow Macaw (Ara ararauna), Superb bird-of-paradise (Lophorina superba), Blue jay (Cyanocitta cristata), American robin (Turdus migratorius), Mallard (Anas platyrhynchos), Common Ostrich (Struthio camelus), Southern cassowary (Casuarius casuarius), and Southern Brown Kiwi (Apteryx australis).

Episode 31: Buzz-saw Mouth

Age and Setting: Idaho (Phosphoria Formation), 290 million BC (Earliest Artinskian stage of the Early Permian)

Plot: The Kratts and their crew travel to the oceans of the Permian period to witness and learn about the bizarre Helicoprion, a large predatory cartilageous fish related to sharks and closely-related to the ratfish with a set of teeth that formed a whorl like a buzzsaw in its lower jaws. Using their Creature Power of Helicoprion, Chris and Martin follows the life of the eugeneodontid and learn about the power and purpose of the bizarre, whorl-shaped teeth and jaws. Meanwhile, Zach and Gourmand teamed up to capture some of the Helicoprion for the former's experiment and the latter's shark fin soup. So the Kratts, using their Helicoprion Power, must stop the two villains and rescue the Helicoprion.

Animals: Helicoprion sp., Stenoconites idahoensis (described as belemnites), Cladoselache fyleri (Picture Only), and Edestus giganteus (Picture Only).

Episode 32: Give a Bear-dog a Bone

Age and Setting: California, 15 million BC (Early Langhian stage of the Mid Miocene epoch of the Neogene)

Plot: The Wild Kratts travel to California, 15 million years ago in the Mid Miocene epoch of the Neogene period, to search, witness, and learn about Amphicyon ingen, one of the largest of an extinct family of carnivoran mammals known amphicyonids, or simply known as "Bear-dogs", as they are related to both bears and dogs and share traits with them such as long, powerful legs, strong jaws, and long tails. Using their Creature Power of Amphicyon, Chris and Martin follow and learn the life of the Amphicyon they named Amphy to learn about its behavior, its power and ferocity, and how it hunted.

Animals: Amphicyon ingens, Aepycamelus erlodi, Pliohippus pernix, Tylocephalonyx skinneri, and Gomphotherium productum.

Episode 33: The Hatz in Transylvanian

Age and Setting: Transylvannia, Romania (Sanpetru Formation), 66 million BC (Latest Maastrichtian atage of the Late Cretaceous)

Plot: In this Halloween special, the Wild Kratts travel to Transylvannia, Romania at the very end of the age of dinosaurs (50 years before K-Pg event), when it was once the tiny island of Hateg, one of the archipelago of small islands that make up present-day Europe on the ancient Tethys Sea. There, they witnessed and learned about the variety of dinosaurs that inhabited Hateg Island that were... dwarves compared to their iconic giant counterparts living in the mailand as a result of insular dwarfism (where animals tend to scale down as they adapt to smaller and more isolated areas where there was less food and space and no ground-dwelling predators). Among these dinosaurian dwarves they witnessed in Hateg Island was Magyarosaurus, a sauropod the size of a pony despite being a relative of some of the largest land animals that ever walked the earth that grew nearly half the length of a football field, stood as tall as a five-story building, and weigh nearly a hundred tons. They also witnessed, encountered, and learned about the largest animal of Hateg Island and one of the largest animals that ever flew: Hatzegopteryx, a giant azhdarchid pterosaur with a wingspan of around 36 feet, stood nearly as tall as a giraffe when on the ground, and is the apex predator of Hateg Island, filling the role and niche of the large theropod dinosaurs of elsewhere as they were absent on Hateg Island, hunting and preying on the dwarf dinosaurs on the ground in a similar manner as the modern-day stork. With Chris using the Creature Power of Magyarosaurus and Martin using the Creature Power of Hatzegopteryx, the brothers follow the lives of these two bizarre animals (Maggy the Magyarosaurus and Hatzy the Hatzegopteryx) to learn about them, their behavior, and life in Hateg Island.

Animals: Hatzegopteryx thambema, Magyarosaurus dacus, Zalmoxes robustus, Telmatosaurus transsylvanicus, Struthiosaurus transylvanicus, Bradycneme draculae, Balaur bondoc, Allodaposuchus precedens, and Kogaionon ungureanui.

Episode 34: Alien World

Age and Setting: British Columbia Canada (Burgess Shale), 508 million BC (Miaolingian stage of the Mid Cambrian)

Plot: The Wild Kratts traveled more than half a billion years to the Cambrian period when many modern animal phylas evolved from a common ancestor and became complex for the first time in a major evolutionary event in Earth's history known as the Cambrian Explosion. Once they reached there to an ocean that covers what will one day be Canada, they witnessed an ocean teeming with bizarre and unusual animals like the five-eyed Opabinia and the spiny Hallucigenia. Using their Trilobite Power, the Kratt brothers swims out and explore and learn about this bizarre, alien world whilst evading the attention of the ocean's apex predator, Anomalocaris.

Animals: Anomalocaris canadensis, Opabinia regalis, Hallucigenia sparsa, Wiwaxia corrugata, Pikaia gracilens, Laggania cambria, Hurdia victoria, Marrella splendens, Waptia fieldensis, Ottoia prolifica, Olenoides serratus, and Oryctocephalus burgessensis.

Episode 35: Valley of the Uglies

Age and Setting: South Dakota (White River Formation), 33 million BC (Early Rupelian stage of the Early Oligocene epoch of the Late Paleogene)

Plot: The Wild Kratts travel to South Dakota more than 30 million years ago in the Oligocene epoch to witness the variety of bizarre mammals living there, including the large of predators. Among these was Archaeotherium, a 7-foot, entelodontid hooved carnivore that resembles pigs despite that its closely related to hippopotamuses, whales, and dolphins, and Hyaenodon horridus, vicious predatory mammal with bone-crushing jaws, meat-shearing teeth, and despite its name and dog-like appearance is actually a member of a very primitive family of predatory placental mammals known as creodonts that are now extinct and left no living descendants. With Chris using the Creature Power of Hyaenodon while Martin does his with Archaeotherium, the brothers follow these two competing predators to learn about their behavior, lifestyle, and the world around, along with other strange animals of the region.

Animals: Archaeotherium mortoni, Hyaenodon horridus, Hoplophoneus occidentalis, Bathornis veredus, Miohippus gidleyi, Hesperocyon gregarius, Diceratherium tridactylum, Merycoidodon culbertsoni, Poebrotherium wilsoni, Ischyromys typus, and Alligator prenasalis.

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