Zoo Tycoon 3/De-Extinction

Zoo Tycoon 3: De-Extinction is the third expansion pack for Zoo Tycoon 3. It contains prehistoric and recently extinct animals from different time periods.

Fences

 * Dinosaur Fence
 * Electric Fence
 * Stone Fence
 * Glass dome for pterosaurs
 * Large Aquarium Tanks for large sea monsters
 * Electric arcylic window

Buildings

 * Dinosaur Museum
 * Prehistoric Mammal Museum
 * Prehistoric Marine Life Museum
 * Cloning Research Lab
 * Dinosaur Capture Patrol Building
 * Prehistoric-Themed Family Restaurant
 * Prehistoric-Themed Large Restroom
 * Prehistoric-Themed Small Restroom
 * Prehistoric-Themed Gift Shop

Scenery

 * 1840's Iguanodon Statue 1 (from Crystal Palace Park)
 * 1840's Iguanodon Statue 2 (from Crystal Palace Park)
 * 1840's Megalosaurus Statue (from Crystal Palace Park)
 * 1964 Ankylosaurus Model (from New York World's Fair 1964)
 * 1964 Brontosaurus Model (from New York World's Fair 1964)
 * 1964 Corythosaurus Model (from New York World's Fair 1964)
 * 1964 Ornitholestes Model (from New York World's Fair 1964)
 * 1964 Stegosaurus Model (from New York World's Fair 1964)
 * 1964 Struthiomimus Model (from New York World's Fair 1964)
 * 1964 Trachodon Model (from New York World's Fair 1964)
 * 1964 Triceratops Model (from New York World's Fair 1964)
 * 1964 Tyrannosaurus Model (from New York World's Fair 1964)
 * Brachiosaurus Slide
 * Brontosaurus Skeleton
 * Cave Painting Wall
 * Deinocheirus Arms
 * Dinosaur Size Chart
 * Mammoth Skeleton
 * Mammoth Statue
 * Megalodon Jaws
 * Mosasurus Fountain
 * Mosasaurus Skeleton
 * Pteranodon Skeleton
 * Robotic Allosaurus Model (Dinamation)
 * Robotic Amargasaurus Model (Dinamation)
 * Robotic Amargasaurus Baby Model (Dinamation)
 * Robotic Apatosaurus Model (Dinamation)
 * Robotic Apatosaurus Baby Model (Dinamation)
 * Robotic Baryonyx Model (Dinamation)
 * Robotic Coelodonta Model (Dinamation)
 * Robotic Deinonychus Model 1 (Dinamation)
 * Robotic Deinonychus Model 2 (Dinamation)
 * Robotic Deinonychus Model 3 (Dinamation)
 * Robotic Dilophosaurus Model (Dinamation)
 * Robotic Dimetrodon Model (Dinamation)
 * Robotic Doedicurus Model (Dinamation)
 * Robotic Dying Triceratops Model (Dinamation)
 * Robotic Eobasileus Model (Dinamation)
 * Robotic Eremotherium & Baby Model (Dinamation)
 * Robotic Euoplocephalus Model (Dinamation)
 * Robotic Half-Scale Tyrannosaurus Model (Dinamation)
 * Robotic Interactive Dimetrodon Model (Dinamation)
 * Robotic Megachoerus Model (Dinamation)
 * Robotic Pachycephalosaurus Model (Dinamation)
 * Robotic Parasaurolophus Model (Dinamation)
 * Robotic Parasaurolophus Baby Model (Dinamation)
 * Robotic Parasaurolophus Nest Model (Dinamation)
 * Robotic Protoceratops & Velociraptors Model (Dinamation)
 * Robotic Pteranodon Model (Dinamation)
 * Robotic Pteranodon Mother and Babies Model (Dinamation)
 * Robotic Smilodon Model (Dinamation)
 * Robotic Stegosaurus Model (Dinamation)
 * Robotic Stegosaurus Baby Model (Dinamation)
 * Robotic Torosaurus Model (Dinamation)
 * Robotic Triceratops Model (Dinamation)
 * Robotic Triceratops Baby Model (Dinamation)
 * Robotic Tyrannosaurus Model (Dinamation)
 * Robotic Utahraptor Model (Dinamation)
 * Robotic Woolly Mammoth Model (Dinamation)
 * Robotic Woolly Mammoth Baby Model (Dinamation)
 * Rock-Climbing Wall
 * Smilodon Skeleton
 * Stegosaurus Skeleton
 * Torch Lamp
 * Triceratops Skeleton
 * Tyrannosaurus Skeleton

Unlockable Scenery

 * Robotic Desert Leaper Model (Dinamation)
 * Robotic Night Stalker Model (Dinamation)
 * Woolly Gigantelope Model (Dinamation)

Rides

 * Jeep
 * Station
 * Road
 * Gyrosphere
 * Station
 * Road

Adoptable

 * 1) Abelisaurus comahuensis (Shrubland)
 * 2) Acheroraptor temertyorum (Taiga)
 * 3) Achillobator giganticus (Desert)
 * 4) Acrocanthosaurus atokensis (Taiga)
 * 5) Acrophoca longirostris (Coast)
 * 6) Aepycamelus giraffinus (Grassland)
 * 7) Afrovenator abakensis (Tropical Rainforest)
 * 8) Agujaceratops mariscalensis (Shrubland)
 * 9) Agustinia ligabuei (Shrubland)
 * 10) Aivukus cedrosensis (Coast)
 * 11) Alamosaurus sanjuanensis (Shrubland)
 * 12) Alanqa saharica (Wetland)
 * 13) Albertosaurus sarcophagus (Taiga)
 * 14) Alectrosaurus olseni (Desert)
 * 15) Alexornis antecedens (Taiga)
 * 16) Alioramus remotus (Desert)
 * 17) Allosaurus fragilis (Shrubland)
 * 18) Amargasaurus cazaui (Shrubland)
 * 19) Ambulocetus natans (Wetland)
 * 20) American Jaguar (Panthera onca augusta) (Grassland)
 * 21) American Lion (Panthera atrox) (Grassland)
 * 22) American Mastodon (Mammut americanum) (Temperate Forest)
 * 23) Amphicoelias altus (Shrubland)
 * 24) Amphicyon major (Grassland)
 * 25) Anancus arvernensis (Grassland)
 * 26) Anchiornis huxleyi (Tropical Rainforest)
 * 27) Ancylotherium hennigi (Savanna)
 * 28) Andrewsarchus mongoliensis (Shrubland)
 * 29) Anthropornis nordenskjoldi (Coast)
 * 30) Ankylosaurus magniventris (Taiga)
 * 31) Anomalocaris canadensis (Benthic)
 * 32) Anurognathus ammoni (Tropical Rainforest)
 * 33) Apatosaurus ajax (Shrubland)
 * 34) Apidium phiomense (Coast)
 * 35) Arabian Ostrich (Struthio camelus syriacus) (Desert)
 * 36) Archaeoindris fontoynontii (Tropical Rainforest)
 * 37) Archaeolemur edwardsi (Shrubland)
 * 38) Archaeopteryx lithographica (Tropical Rainforest)
 * 39) Archaeotherium mortoni‭ (Grassland)
 * 40) Archelon ischyros (Coast)
 * 41) Arctotherium bonariense (Grassland)
 * 42) Argentavis magnificens (Grassland)
 * 43) Argentinosaurus huinculensis (Shrubland)
 * 44) Arizonasaurus babbitti (Shrubland)
 * 45) Armadillosuchus arrudai (Shrubland)
 * 46) Arsinoitherium zitteli (Coast)
 * 47) Arthropleura armata (Wetland)
 * 48) Atlas Bear (Ursus arctos crowtheri) (Temperate Forest)
 * 49) Atopodentatus unicus (Coast)
 * 50) Aurochs (Bos primigenius)
 * 51) Euraisan Aurochs (primigenius) (Temperate Forest)
 * 52) Indian Aurochs (namadicus) (Shrubland)
 * 53) Australopithecus africanus (Savanna)
 * 54) Australovenator wintonensis (Shrubland)
 * 55) Avimimus portentosus (Desert)
 * 56) Baculites vertebralis (Coast)
 * 57) Baiji Dolphin (Lipotes vexillifer) (Wetland)
 * 58) Balaur bondoc (Tropical Rainforest)
 * 59) Balinese Tiger (Panthera tigris balica) (Tropical Rainforest)
 * 60) Bambiraptor feinbergi (Taiga)
 * 61) Bananogmius ellisensis (Coast)
 * 62) Barbaturex morrisoni (Tropical Rainforest)
 * 63) Barbourofelis fricki (Grassland)
 * 64) Barosaurus lentus (Shrubland)
 * 65) Barylambda faberi (Shrubland)
 * 66) Baryonyx walkeri (Coast)
 * 67) Basilemys sinuosa (Taiga)
 * 68) Basilosaurus cetoides (Coast)
 * 69) Bear Otter (Megalenhydris barbaricina) (Wetland)
 * 70) Beautiful Armadillo (Dasypus bellus) (Shrubland)
 * 71) Beelzebufo ampinga (Tropical Rainforest)
 * 72) Beipiaosaurus inexpectus (Tropical Rainforest)
 * 73) Bistahieversor sealeyi (Shrubland)
 * 74) Black Mamo (Drepanis funerea) (Tropical Rainforest)
 * 75) Bluebuck (Hippotragus leucophaeus) (Savanna)
 * 76) Bluff Downs Giant Python (Liasis dubudingala) (Tropical Rainforest)
 * 77) Bohlinia attica (Savanna)
 * 78) Bonitasaura salgadoi (Shrubland)
 * 79) Bootherium bombifrons (Taiga)
 * 80) Borealosuchus sternbergii (Wetland)
 * 81) Borhyaena tuberata (Grassland)
 * 82) Borophagus diversidens (Shrubland)
 * 83) Brachiosaurus altithorax (Shrubland)
 * 84) Bramatherium perimense (Shrubland)
 * 85) Broad-Billed Parrot (Lophopsittacus mauritianus) (Tropical Rainforest)
 * 86) Brontornis burmeisteri (Grassland)
 * 87) Brontosaurus excelsus (Shrubland)
 * 88) Brontoscorpio anglicus (Benthic)
 * 89) Bubal Hartebeest (Alcelaphus buselaphus buselaphus) (Shrubland)
 * 90) Buitreraptor gonzalezorum (Shrubland)
 * 91) Bush-Antlered Deer (Eucladoceros dicranios) (Temperate Forest)
 * 92) California Golden Grizzly Bear (Ursus arctos californicus) (Temperate Forest)
 * 93) California Turkey (Meleagris californica) (Grassland)
 * 94) Camarasaurus supremus (Shrubland)
 * 95) Camptosaurus dispar (Shrubland)
 * 96) Cape Giant Zebra (Equus capensis) (Savanna)
 * 97) Cape Lion (Panthera leo melanochaitus) (Savanna)
 * 98) Carbonemys cofrinii (Wetland)
 * 99) Carcharodontosaurus saharicus (Tropical Rainforest)
 * 100) Caribbean Monk Seal (Neomonachus tropicalis) (Coast)
 * 101) Carnotaurus sastrei (Shrubland)
 * 102) Carolina Parakeet (Conuropsis carolinensis) (Temperate Forest)
 * 103) Cartelles coimbrafilhoi (Tropical Rainforest)
 * 104) Caspian Tiger (Panthera tigris virgata) (Temperate Forest)
 * 105) Castorocauda lutrasimilis (Wetland)
 * 106) Caudipteryx zoui (Tropical Rainforest)
 * 107) Cave Bear (Ursus spelaeus) (Taiga)
 * 108) Cave Goat (Myotragus balearicus) (Alpine)
 * 109) Cave Hyena (Crocuta spelaea) (Taiga)
 * 110) Centrosaurus apertus (Taiga)
 * 111) Ceratogaulus rhinocerus (Grassland)
 * 112) Ceratosaurus nasicornis (Shrubland)
 * 113) Cervalces scotti (Taiga)
 * 114) Cetotherium riabinini (Pelagic)
 * 115) Chalicotherium goldfussi (Shrubland)
 * 116) Chamitataxus avitus (Grassland)
 * 117) Changyuraptor yangi (Tropical Rainforest)
 * 118) Chapalmalania altaefrontis (Wetland)
 * 119) Chasmaporthetes ossifragus (Grassland)
 * 120) Chasmosaurus belli (Taiga)
 * 121) Chilesaurus diegosuarezi (Shrubland)
 * 122) Chilotherium persiae (Grassland)
 * 123) Choiseul Crested Pigeon (Microgoura meeki) (Tropical Rainforest)
 * 124) Citipati osmolskae (Desert)
 * 125) Climacoceras africanus (Savanna)
 * 126) Coelophysis bauri (Shrubland)
 * 127) Coloborhynchus clavirostris (Coast)
 * 128) Columbian Mammoth (Mammuthus columbi) (Grassland)
 * 129) Compsognathus longipes (Coast)
 * 130) Concavenator crassiserratus (Taiga)
 * 131) Confuciusornis sanctus (Tropical Rainforest)
 * 132) Coryphodon eocaenus (Wetland)
 * 133) Corythosaurus casuarius (Taiga)
 * 134) Crassigyrinus scoticus (Wetland)
 * 135) Cretoxyrhina mantelli (Pelagic)
 * 136) Cronopio dentiacutus (Shrubland)
 * 137) Cryolophosaurus ellioti (Tropical Rainforest)
 * 138) Cuban Giant Owl (Ornimegalonyx oteroi) (Tropical Rainforest)
 * 139) Cuban Red Macaw (Ara tricolor) (Tropical Rainforest)
 * 140) Cymbospondylus piscosus (Coast)
 * 141) Cynodictis elegans (Shrubland)
 * 142) Cynognathus crateronotus (Shrubland)
 * 143) Daeodon shoshonensis (Grassland)
 * 144) Daggett's Eagle (Buteogallus daggetti) (Grassland)
 * 145) Dakotaraptor steini (Taiga)
 * 146) Dapedium politum (Coast)
 * 147) Darwinius masillae (Tropical Rainforest)
 * 148) Darwinopterus modularis (Temperate Forest)
 * 149) Daspletosaurus torosus (Taiga)
 * 150) Deinocheirus mirificus (Wetland)
 * 151) Deinogalerix masinii (Temperate Forest)
 * 152) Deinonychus antirrhopus (Taiga)
 * 153) Deinosuchus riograndensis (Wetland)
 * 154) Deinotherium bozasi (Savanna)
 * 155) Delalande's Coua (Coua delalandei) (Tropical Rainforest)
 * 156) Desmostylus hesperus (Coast)
 * 157) Diabloceratops eatoni (Shrubland)
 * 158) Diacodexis pakistanensis (Wetland)
 * 159) Dicynodon lacerticeps (Wetland)
 * 160) Dinictis felina (Grassland)
 * 161) Didelphodon vorax (Taiga)
 * 162) Diictodon feliceps (Shrubland)
 * 163) Dilong paradoxus (Tropical Rainforest)
 * 164) Dilophosaurus wetherilli (Shrubland)
 * 165) Dimetrodon grandis (Shrubland)
 * 166) Dimorphodon macronyx (Tropical Rainforest)
 * 167) Dinocrocuta gigantea (Grassland)
 * 168) Dinofelis barlowi (Savanna)
 * 169) Dinopithecus ingens‭ (Savanna)
 * 170) Diplocaulus salamandroides (Wetland)
 * 171) Diplodocus longus (Shrubland)
 * 172) Diprotodon optatum (Shrubland)
 * 173) Dire Wolf (Canis dirus) (Taiga)
 * 174) Dodo (Raphus cucullatus) (Tropical Rainforest)
 * 175) Doedicurus clavicaudatus (Grassland)
 * 176) Dolichorhynchops osborni (Pelagic)
 * 177) Domed Rodriguez Greater Tortoise (Cylindraspis peltastes) (Tropical Rainforest)
 * 178) Dorudon atrox (Pelagic)
 * 179) Dorygnathus banthensis (Coast)
 * 180) Dreadnoughtus schrani (Shrubland)
 * 181) Dromaeosaurus albertensis (Taiga)
 * 182) Dromornis stirtoni (Shrubland)
 * 183) Dryosaurus altus (Shrubland)
 * 184) Dsungaripterus weii (Coast)
 * 185) Dunkleosteus terrelli (Pelagic)
 * 186) Dwarf Panda (Ailuropoda minor) (Tropical Rainforest)
 * 187) Eastern Bison (Bison bison pennsylvanicus) (Temperate Forest)
 * 188) Eastern Elk (Cervus canadensis canadensis) (Temperate Forest)
 * 189) Edaphosaurus pogonias (Shrubland)
 * 190) Edestus giganteus (Pelagic)
 * 191) Edmontonia rugosidens (Taiga)
 * 192) Edmontosaurus annectens (Taiga)
 * 193) Effigia okeeffeae (Shrubland)
 * 194) Einiosaurus procurvicornis (Taiga)
 * 195) Ekaltadeta ima (Temperate Forest)
 * 196) Ekorus ekakera (Tropical Rainforest)
 * 197) Elasmosaurus platyurus (Coast)
 * 198) Elasmotherium sibiricum (Tundra)
 * 199) Elephant Bird (Aepyornis maximus) (Tropical Rainforest)
 * 200) Embolotherium andrewsi (Shrubland)
 * 201) Enchodus ferox (Coast)
 * 202) Enhydriodon dikikae (Wetland)
 * 203) Entelodon magnus (Shrubland)
 * 204) Eobasileus cornutus (Wetland)
 * 205) Eoraptor lunensis (Shrubland)
 * 206) Epicyon haydeni (Grassland)
 * 207) Epidexipteryx hui (Tropical Rainforest)
 * 208) Eremotherium eomigrans (Shrubland)
 * 209) Eryops megacephalus (Wetland)
 * 210) Estemmenosuchus uralensis (Wetland)
 * 211) Euceratherium collinum (Taiga)
 * 212) Euoplocephalus tutus (Taiga)
 * 213) Euparkeria capensis (Shrubland)
 * 214) Eurasian Cave Lion (Panthera spelaea) (Taiga)
 * 215) Eurhinodelphis cocheuteuxi (Coast)
 * 216) Eurhinosaurus longirostris (Coast)
 * 217) European Hippopotamus (Hippopotamus antiquus) (Wetland)
 * 218) Eurotamandua joresi (Tropical Rainforest)
 * 219) Eurypterus remipes (Benthic)
 * 220) Eustreptospondylus oxoniensis (Coast)
 * 221) Flightless Crane (Grus cubensis) (Wetland)
 * 222) Fruitafossor windscheffeli (Shrubland)
 * 223) Gallimimus bullatus (Desert)
 * 224) Gastornis geiselensis (Tropical Rainforest)
 * 225) Genyornis newtoni (Shrubland)
 * 226) Geosaurus giganteus (Coast)
 * 227) Giant Aye-Aye (Daubentonia robusta) (Tropical Rainforest)
 * 228) Giant Beaver (Castoroides ohioensis) (Wetland)
 * 229) Giant Bison (Bison latifrons) (Grassland)
 * 230) Giant Cheetah (Acinonyx pardinensis) (Grassland)
 * 231) Giant Echidna (Zaglossus hacketti) (Shrubland)
 * 232) Giant Fossa (Cryptoprocta spelea) (Tropical Rainforest)
 * 233) Giant Horse (Equus giganteus) (Grassland)
 * 234) Giant Koala (Phascolarctos stirtoni) (Temperate Forest)
 * 235) Giant Orthocone (Cameroceras trentonense) (Benthic)
 * 236) Giant Ostrich (Struthio dmanisensis) (Shrubland)
 * 237) Giant Short-Faced Bear (Arctodus simus) (Grassland)
 * 238) Giant Swan (Cygnus falconeri) (Wetland)
 * 239) Giant Vampire Bat (Desmodus draculae) (Tropical Rainforest)
 * 240) Giant Warthog (Metridiochoerus andrewsi) (Savanna)
 * 241) Giganotosaurus carolinii (Shrubland)
 * 242) Gigantophis garstini (Coast)
 * 243) Gigantopithecus blacki (Tropical Rainforest)
 * 244) Gigantoraptor erlianensis (Shrubland)
 * 245) Giraffatitan brancai (Grassland)
 * 246) Glyptodon clavipes (Shrubland)
 * 247) Glyptotherium cylindricum (Shrubland)
 * 248) Golden Toad (Bufo periglenes) (Cloud Forest)
 * 249) Gomphotherium angustidens (Shrubland)
 * 250) Gorgonops torvus (Shrubland)
 * 251) Gorgosaurus libratus (Taiga)
 * 252) Great Auk (Pinguinus impennis) (Coast)
 * 253) Gryposaurus notabilis (Taiga)
 * 254) Guadeloupe Macaw (Ara guadeloupensis) (Tropical Rainforest)
 * 255) Guanlong wucaii (Tropical Rainforest)
 * 256) Haast's Eagle (Harpagornis moorei) (Temperate Forest)
 * 257) Hagerman Horse (Equus simplicidens) (Grassland)
 * 258) Hainosaurus bernardi (Coast)
 * 259) Haplocheirus sollers (Tropical Rainforest)
 * 260) Hatzegopteryx thambema (Tropical Rainforest)
 * 261) Hawaiian Flightless Ibis (Apteribis glenos) (Tropical Rainforest)
 * 262) Hawaiian Mamo (Drepanis pacifica) (Tropical Rainforest)
 * 263) Hawaiian O-O (Moho nobilis) (Tropical Rainforest)
 * 264) Heath Hen (Tympanuchus cupido cupido) (Grassland)
 * 265) Helicoprion bessonovi (Benthic)
 * 266) Henodus chelyops (Coast)
 * 267) Heterodontosaurus tucki (Shrubland)
 * 268) Herrerasaurus ischigualastensis (Shrubland)
 * 269) Hesperornis regalis (Coast)
 * 270) Hippidion saldiasi (Grassland)
 * 271) Hippopotamus gorgops (Wetland)
 * 272) Holmesina septentrionalis (Shrubland)
 * 273) Homotherium serum (Grassland)
 * 274) Honshū Wolf (Canis lupus hodophilax) (Temperate Forest)
 * 275) Hoplophoneus primaevus (Grassland)
 * 276) Huia (Heteralocha acutirostris) (Temperate Forest)
 * 277) Hulitherium tomasetti (Tropical Rainforest)
 * 278) Hyaenodon gigas (Shrubland)
 * 279) Hybodus houtienensis (Coast)
 * 280) Hyneria lindae (Coast)
 * 281) Hypsilophodon foxii (Taiga)
 * 282) Hyracotherium leporinum (Temperate Forest)
 * 283) Icadyptes salasi (Coast)
 * 284) Icaronycteris index (Tropical Rainforest)
 * 285) Ichthyornis dispar (Coast)
 * 286) Ichthyosaurus communis (Coast)
 * 287) Ichthyostega stensioei (Wetland)
 * 288) Ichthyovenator laosensis (Wetland)
 * 289) Iguanodon bernissartensis (Taiga)
 * 290) Incisivosaurus gauthieri (Tropical Rainforest)
 * 291) Inkayacu paracasensis (Coast)
 * 292) Inostrancevia alexandri (Desert)
 * 293) Irritator challengeri (Coast)
 * 294) Isaberrysaura mollensis (Shrubland)
 * 295) Ivory-Billed Woodpecker (Campephilus principalis)
 * 296) Cuban Ivory-Billed Woodpecker (bairdii) (Temperate Forest)
 * 297) Jaekelopterus rhenaniae (Benthic)
 * 298) Jamaican Flightless Ibis (Xenicibis xympithecus) (Coast)
 * 299) Jamacian Giant Galliwasp (Celestus occiduus) (Tropical Rainforest)
 * 300) Japanese River Otter (Lutra lutra whiteleyi) (Wetland)
 * 301) Japanese Sea Lion (Zalophus japonicus) (Coast)
 * 302) Javan Tiger (Panthera tigris sondaica) (Tropical Rainforest)
 * 303) Jonkeria truculenta (Shrubland)
 * 304) Josephoartigasia monesi (Shrubland)
 * 305) Juratyrant langhami (Coast)
 * 306) Kairuku grebneffi (Coast)
 * 307) Kangaroo Island Emu (Dromaius baudinianus) (Shrubland)
 * 308) Kannemeyeria simocephalus (Shrubland)
 * 309) Kaprosuchus saharicus (Wetland)
 * 310) Kauai Akialoa (Akialoa stejnegeri) (Tropical Rainforest)
 * 311) Kauai Mole Duck (Talpanas lippa) (Tropical Rainforest)
 * 312) Kawekaweau (Hoplodactylus delcourti) (Tropical Rainforest)
 * 313) Kelenken guillermoi (Grassland)
 * 314) Kenai Peninsula Wolf (Canis lupus alces) (Taiga)
 * 315) Kentriodon pernix (Pelagic)
 * 316) Kentrosaurus aethiopicus (Grassland)
 * 317) Kolponomos newportensis (Coast)
 * 318) Koolasuchus cleelandi (Wetland)
 * 319) Kopidodon macrognathus (Tropical Rainforest)
 * 320) Kosmoceratops richardsoni (Taiga)
 * 321) Kouprey (Bos sauveli) (Tropical Rainforest)
 * 322) Kronosaurus queenslandicus (Coast)
 * 323) Kubanochoerus gigas (Grassland)
 * 324) Kulindadromeus zabaikalicus (Wetland)
 * 325) Labrador Duck (Camptorhynchus labradorius) (Coast)
 * 326) Lambeosaurus lambei (Taiga)
 * 327) Laophis crotaloides (Tropical Rainforest)
 * 328) Laughing Owl (Sceloglaux albifacies) (Temperate Forest)
 * 329) Leaellynasaura amicagraphica (Temperate Forest)
 * 330) Leedsichthys problematicus (Coast)
 * 331) Leptictidium auderiense (Tropical Rainforest)
 * 332) Leptoceratops gracilis (Taiga)
 * 333) Leptoptilos robustus (Wetland)
 * 334) Liaoningosaurus paradoxus (Tropical Rainforest)
 * 335) Liopleurodon ferox (Coast)
 * 336) Livyatan melvillei (Pelagic)
 * 337) Lotosaurus adentus (Shrubland)
 * 338) Lycaenops ornatus (Wetland)
 * 339) Lynx issiodorensis (Shrubland)
 * 340) Machairodus aphanistus (Grassland)
 * 341) Machimosaurus rex (Coast)
 * 342) Macrauchenia patachonica (Grassland)
 * 343) Madtsoia bai (Tropical Rainforest)
 * 344) Maiasaura peeblesorum (Taiga)
 * 345) Majungasaurus crenatissimus (Tropical Rainforest)
 * 346) Malagasy Dwarf Hippopotamus (Choeropsis madagascariensis) (Tropical Rainforest)
 * 347) Mamenchisaurus sinocanadorum (Tropical Rainforest)
 * 348) Mapusaurus roseae (Shrubland)
 * 349) Marshosaurus bicentesimus (Shrubland)
 * 350) Martinique Musk Rat (Megalomys desmarestii) (Coast)
 * 351) Masiakasaurus knopfleri (Tropical Rainforest)
 * 352) Massospondylus carinatus (Shrubland)
 * 353) Mastodonsaurus jaegeri (Wetland)
 * 354) Mauritius Blue Pigeon (Alectroenas nitidissimus) (Tropical Rainforest)
 * 355) Megacerops coloradensis (Grassland)
 * 356) Megachoerus latidens (Shrubland)
 * 357) Megaladapis edwardsi (Tropical Rainforest)
 * 358) Megalania (Varanus priscus) (Shrubland)
 * 359) Megalictis ferox (Grassland)
 * 360) Megaloceros giganteus (Taiga)
 * 361) Megalochelys atlas (Shrubland)
 * 362) Megalodon (Carcharodon megalodon) (Pelagic)
 * 363) Megalonyx jeffersonii (Shrubland)
 * 364) Megalosaurus bucklandii (Tropical Rainforest)
 * 365) Megalotragus priscus (Savanna)
 * 366) Meganeura monyi (Wetland)
 * 367) Megapiranha paranensis (Wetland)
 * 368) Megarachne servinei (Wetland)
 * 369) Megaraptor namunhuaiquii (Shrubland)
 * 370) Megatapirus augustus (Wetland)
 * 371) Megatherium americanum (Grassland)
 * 372) Megistotherium osteothlastes (Grassland)
 * 373) Mei long (Tropical Rainforest)
 * 374) Meiolania platyceps (Shrubland)
 * 375) Mesopithecus pentelici (Tropical Rainforest)
 * 376) Mesonyx uintensis (Tropical Rainforest)
 * 377) Metriacanthosaurus parkeri (Tropical Rainforest)
 * 378) Metriorhynchus geoffroyii (Coast)
 * 379) Miacis cognitus (Tropical Rainforest)
 * 380) Microraptor gui (Tropical Rainforest)
 * 381) Miracinonyx trumani (Grassland)
 * 382) Miragaia longicollum (Shrubland)
 * 383) Moeritherium andrewsi (Coast)
 * 384) Molokai Creeper (Paroreomyza flammea) (Tropical Rainforest)
 * 385) Monolophosaurus jiangi (Tropical Rainforest)
 * 386) Mononykus olecranus (Desert)
 * 387) Moropus distans (Grassland)
 * 388) Mosasaurus hoffmannii (Coast)
 * 389) Moschops capensis (Shrubland)
 * 390) Muttaburrasaurus langdoni (Temperate Forest)
 * 391) Mymoorapelta maysi (Wetland)
 * 392) Nanuqsaurus hoglundi (Taiga)
 * 393) Nasutoceratops titusi (Shrubland)
 * 394) Necrolestes patagonensis (Shrubland)
 * 395) Nemicolopterus crypticus (Tropical Rainforest)
 * 396) Ngandong Tiger (Panthera tigris soloensis) (Tropical Rainforest)
 * 397) Norfolk Island Kaka (Nestor productus) (Temperate Forest)
 * 398) North American Camel (Camelops hesternus) (Grassland)
 * 399) North American Capybara (Neochoerus pinckneyi) (Wetland)
 * 400) North American Giant Tortoise (Hesperotestudo crassicutata) (Grassland)
 * 401) North American Llama (Hemiauchenia macrocephala) (Grassland)
 * 402) North American Tapir (Tapirus merriami) (Wetland)
 * 403) North Island Adzebill (Aptornis otidiformis) (Temperate Forest)
 * 404) North Island Giant Moa (Dinornis novaezealandiae) (Temperate Forest)
 * 405) Nothosaurus mirabilis (Coast)
 * 406) Nothrotheriops shastensis (Shrubland)
 * 407) Nundasuchus songeaensis (Shrubland)
 * 408) Nuralagus rex (Shrubland)
 * 409) Nyctosaurus gracilis (Coast)
 * 410) Oahu Thrush (Myadestes woahensis) (Tropical Rainforest)
 * 411) Obdurodon tharalkooschild (Wetland)
 * 412) Ocepechelon bouyai (Coast)
 * 413) Odobenocetops leptodon (Coast)
 * 414) Olorotitan arharensis (Taiga)
 * 415) Opabinia regalis (Benthic)
 * 416) Ophthalmosaurus icenicus (Coast)
 * 417) Ornitholestes hermanni (Shrubland)
 * 418) Ornithomimus velox (Taiga)
 * 419) Oryctodromeus cubicularis (Taiga)
 * 420) Ostafrikasaurus crassiserratus (Grassland)
 * 421) Othnielosaurus consors (Shrubland)
 * 422) Ouranosaurus nigeriensis (Tropical Rainforest)
 * 423) Oviraptor philoceratops (Desert)
 * 424) Oxalaia quilombensis (Coast)
 * 425) Pachycephalosaurus wyomingensis (Taiga)
 * 426) Pachycrocuta brevirostris (Grassland)
 * 427) Pachyrhachis problematicus (Pelagic)
 * 428) Pachyrhinosaurus perotorum (Taiga)
 * 429) Paenemarmota barbouri (Alpine)
 * 430) Pakicetus attocki (Tropical Rainforest)
 * 431) Palaelodus ambiguus (Wetland)
 * 432) Palaeolagus haydeni (Grassland)
 * 433) Palaeoloxodon falconeri (Grassland)
 * 434) Palaeoloxodon namadicus (Grassland)
 * 435) Palaeopropithecus ingens (Tropical Rainforest)
 * 436) Palaeosaniwa canadensis (Taiga)
 * 437) Paleoparadoxia tabatai (Coast)
 * 438) Palorchestes azael (Shrubland)
 * 439) Paraceratherium bugtiense (Shrubland)
 * 440) Paradise Parrot (Psephotus pulcherrimus) (Grassland)
 * 441) Parasaurolophus walkeri (Taiga)
 * 442) Passenger Pigeon (Ectopistes migratorius) (Temperate Forest)
 * 443) Pelagornis sandersi (Coast)
 * 444) Pelecanimimus polyodon (Taiga)
 * 445) Pelorovis antiquus (Savanna)
 * 446) Peltephilus ferox (Grassland)
 * 447) Perisphinctes boweni (Coast)
 * 448) Peteinosaurus zambellii (Tropical Rainforest)
 * 449) Phorusrhacos longissimus (Grassland)
 * 450) Pig-Footed Bandicoot (Chaeropus ecaudatus) (Desert)
 * 451) Pink-Headed Duck (Rhodonessa caryophyllacea) (Wetland)
 * 452) Pinta Island Galápagos Tortoise (Chelonoidis nigra abingdonii) (Shrubland)
 * 453) Placerias hesternus (Shrubland)
 * 454) Placodus gigas (Coast)
 * 455) Platecarpus tympaniticus (Pelagic)
 * 456) Plateosaurus engelhardti (Taiga)
 * 457) Platybelodon danovi (Wetland)
 * 458) Platygonus compressus (Shrubland)
 * 459) Platyhystrix rugosus (Wetland)
 * 460) Plesiadapis tricuspidens (Tropical Rainforest)
 * 461) Plesictis huilidens (Temperate Forest)
 * 462) Plesiogulo crassa (Temperate Forest)
 * 463) Plesiorycteropus madagascariensis (Tropical Rainforest)
 * 464) Plesiosaurus dolichodeirus (Coast)
 * 465) Pliosaurus funkei (Coast)
 * 466) Polacanthus foxii (Taiga)
 * 467) Pontolis magnus (Coast)
 * 468) Portuguese Ibex (Capra pyrenaica lusitanica) (Alpine)
 * 469) Postosuchus kirkpatricki (Shrubland)
 * 470) Prenocephale prenes (Desert)
 * 471) Presbyornis pervetus (Coast)
 * 472) Prionosuchus plummeri (Wetland)
 * 473) Procoptodon goliah (Shrubland)
 * 474) Propalaeotherium hassiacum (Tropical Rainforest)
 * 475) Propleopus wellingtonensis (Shrubland)
 * 476) Prorastomus sirenoides (Coast)
 * 477) Protoceratops andrewsi (Desert)
 * 478) Protosphyraena perniciosa (Coast)
 * 479) Psephoderma alpinum (Coast)
 * 480) Psittacosaurus mongoliensis (Tropical Rainforest)
 * 481) Pseudaelurus intrepidus (Grassland)
 * 482) Pteranodon longiceps (Coast)
 * 483) Pterodactylus antiquus (Coast)
 * 484) Pterodaustro guinazui (Coast)
 * 485) Puertasaurus reuili (Shrubland)
 * 486) Puijila darwini (Coast)
 * 487) Pulmonoscorpius kirktonensis (Wetland)
 * 488) Puma pardoides (Temperate Forest)
 * 489) Purgatorius unio (Taiga)
 * 490) Purussaurus brasiliensis (Wetland)
 * 491) Pyrenean Ibex (Capra pyrenaica pyrenaica) (Alpine)
 * 492) Pyroraptor olympius (Tropical Rainforest)
 * 493) Qianzhousaurus sinensis (Tropical Rainforest)
 * 494) Quagga (Equus quagga quagga) (Savanna)
 * 495) Quetzalcoatlus northropi (Taiga)
 * 496) Quinkana fortirostrum (Shrubland)
 * 497) Rahonavis ostromi (Tropical Rainforest)
 * 498) Rajasaurus narmadensis (Shrubland)
 * 499) Rebbachisaurus garasbae (Tropical Rainforest)
 * 500) Repenomamus giganticus (Tropical Rainforest)
 * 501) Rhabdodon priscus (Tropical Rainforest)
 * 502) Rhamphorhynchus muensteri (Coast)
 * 503) Richardoestesia gilmorei (Shrubland)
 * 504) Rodriguez Solitaire (Pezophaps solitaria) (Tropical Rainforest)
 * 505) Rugops primus (Savanna)
 * 506) Rusingoryx atopocranion (Savanna)
 * 507) Saddle-Backed Rodriguez Greater Tortoise (Cylindraspis vosmaeri) (Tropical Rainforest)
 * 508) Saichania chulsanensis (Desert)
 * 509) Saint Helena Hoopoe (Upupa antaios) (Tropical Rainforest)
 * 510) Saltasaurus loricatus (Shrubland)
 * 511) Sanajeh indicus (Shrubland)
 * 512) Sarcosuchus imperator (Wetland)
 * 513) Sardinian Dhole (Cynotherium sardous) (Shrubland)
 * 514) Sarkastodon mongoliensis (Shrubland)
 * 515) Saudi Gazelle (Gazella saudiya) (Desert)
 * 516) Saurolophus angustirostris (Desert)
 * 517) Sauropelta edwardsorum (Taiga)
 * 518) Sauroposeidon protelis (Taiga)
 * 519) Saurornitholestes langstoni (Taiga)
 * 520) Saurosuchus galilei (Shrubland)
 * 521) Savannasaurus elliottorum (Shrubland)
 * 522) Scaphognathus crassirostris (Coast)
 * 523) Scelidosaurus harrisonii (Shrubland)
 * 524) Schomburgk's Deer (Rucervus schomburgki) (Shrubland)
 * 525) Sciurumimus albersdoerferi (Tropical Rainforest)
 * 526) Scolosaurus cutleri (Taiga)
 * 527) Scutosaurus karpinskii (Desert)
 * 528) Sea Mink (Neovison macrodon) (Coast)
 * 529) Segisaurus halli (Tropical Rainforest)
 * 530) Shantungosaurus giganteus (Desert)
 * 531) Shastasaurus pacificus (Pelagic)
 * 532) Shonisaurus popularis (Pelagic)
 * 533) Shunosaurus lii (Shrubland)
 * 534) Shuvuuia deserti (Desert)
 * 535) Siamogale melilutra (Wetland)
 * 536) Siamotyrannus isanensis (Tropical Rainforest)
 * 537) Siats meekerorum (Taiga)
 * 538) Simosuchus clarki (Tropical Rainforest)
 * 539) Sinornithosaurus millenii (Tropical Rainforest)
 * 540) Sinosauropteryx prima (Tropical Rainforest)
 * 541) Sivatherium giganteum (Savanna)
 * 542) Skorpiovenator bustingorryi (Shrubland)
 * 543) Smilodon fatalis (Grassland)
 * 544) Smilodon populator (Grassland)
 * 545) Soergelia mayfieldi (Temperate Forest)
 * 546) Southern Gastric-Brooding Frog (Rheobatrachus silus) (Wetland)
 * 547) Spectacled Cormorant (Phalacrocorax perspicillatus) (Coast)
 * 548) Spinosaurus aegyptiacus (Wetland)
 * 549) Stegodon zdanskyi (Grassland)
 * 550) Stegomastodon mirificus (Grassland)
 * 551) Stegosaurus stenops (Shrubland)
 * 552) Steller's Sea Cow (Hydrodamalis gigas) (Coast)
 * 553) Stephen Island Wren (Traversia lyalli) (Shrubland)
 * 554) Steppe Bison (Bison priscus) (Grassland)
 * 555) Steppe Camel (Camelus knoblochi) (Grassland)
 * 556) Stethacanthus altonensis (Pelagic)
 * 557) Sthenurus stirlingi (Shrubland)
 * 558) Stokesosaurus clevelandi (Shrubland)
 * 559) Stomatosuchus inermis (Coast)
 * 560) Struthiomimus sedens (Taiga)
 * 561) Stupendemys geographicus (Wetland)
 * 562) Stygimoloch spinifer (Taiga)
 * 563) Styracosaurus albertensis (Taiga)
 * 564) Styxosaurus snowii (Coast)
 * 565) Suchomimus tenerensis (Wetland)
 * 566) Supersaurus vivianae (Shrubland)
 * 567) Sylviornis neocaledoniae (Shrubland)
 * 568) Synthetoceras tricornatus (Grassland)
 * 569) Syrian Dromedary Camel (Camelus moreli) (Desert)
 * 570) Syrian Elephant (Elephas maximus asurus) (Desert)
 * 571) Syrian Onager (Equus hemionus hemippus) (Desert)
 * 572) Talarurus plicatospineus (Wetland)
 * 573) Tanystropheus longobardicus (Coast)
 * 574) Tapejara wellnhoferi (Coast)
 * 575) Tarbosaurus bataar (Desert)
 * 576) Tarpan (Equus ferus ferus) (Temperate Forest)
 * 577) Teleoceras major (Wetland)
 * 578) Tenontosaurus tilletti (Taiga)
 * 579) Teratornis merriami (Grassland)
 * 580) Tetrapodophis amplectus (Tropical Rainforest)
 * 581) Thalassocnus antiquus (Coast)
 * 582) Thalassodromeus sethi (Coast)
 * 583) Thalassomedon hanningtoni (Pelagic)
 * 584) Therizinosaurus cheloniformis (Desert)
 * 585) Thrinaxodon liorhinus (Shrubland)
 * 586) Thylacine (Thylacinus cynocephalus) (Temperate Forest)
 * 587) Thylacoleo carnifex (Shrubland)
 * 588) Thylacosmilus atrox (Grassland)
 * 589) Tiktaalik roseae (Wetland)
 * 590) Titanichthys agassizi (Pelagic)
 * 591) Titanis walleri (Grassland)
 * 592) Titanoboa cerrejonensis (Wetland)
 * 593) Titanohyrax andrewsi (Tropical Rainforest)
 * 594) Titanomyrma giganteum (Tropical Rainforest)
 * 595) Titanotylopus spatulus (Shrubland)
 * 596) Toolache Wallaby (Macropus greyi) (Shrubland)
 * 597) Torosaurus latus (Taiga)
 * 598) Torvosaurus tanneri (Shrubland)
 * 599) Toxodon platensis (Grassland)
 * 600) Trachodon mirabilis (Wetland)
 * 601) Triceratops horridus (Taiga)
 * 602) Trinacromerum bentonianum (Pelagic)
 * 603) Troodon formosus (Taiga)
 * 604) Tropeognathus mesembrinus (Coast)
 * 605) Tsintaosaurus spinorhinus (Shrubland)
 * 606) Tuojiangosaurus multispinus (Tropical Rainforest)
 * 607) Tupuxuara longicristatus (Coast)
 * 608) Tusoteuthis longa (Pelagic)
 * 609) Turtle-Jawed Moa-Nalo (Chelychelynechen quassus) (Tropical Rainforest)
 * 610) Twisted-Toothed Giant Hutia (Quemisia gravis) (Grassland)
 * 611) Tylosaurus proriger (Coast)
 * 612) Tyrannosaurus rex (Taiga)
 * 613) Tyrannotitan chubutensis (Shrubland)
 * 614) Tyto gigantea (Temperate Forest)
 * 615) Uintatherium anceps (Grassland)
 * 616) Ula-Ai-Hawane (Ciridops anna) (Tropical Rainforest)
 * 617) Upland Moa (Megalapteryx didinus) (Temperate Forest)
 * 618) Utahraptor ostrommaysorum (Taiga)
 * 619) Vegavis iaai (Coast)
 * 620) Velociraptor mongoliensis (Desert)
 * 621) Viverra leakeyi (Tropical Rainforest)
 * 622) Voay robustus (Tropical Rainforest)
 * 623) Volaticotherium antiquum (Tropical Rainforest)
 * 624) Warrah (Dusicyon australis) (Coast)
 * 625) Wendiceratops pinhornensis (Taiga)
 * 626) Western Black Rhinoceros (Diceros bicornis longipes) (Savanna)
 * 627) White Gallinule (Porphyrio albus) (Tropical Rainforest)
 * 628) Woolly Mammoth (Mammuthus primigenius) (Tundra)
 * 629) Woolly Rhinoceros (Coelodonta antiquus) (Tundra)
 * 630) Wuerhosaurus homheni (Tropical Rainforest)
 * 631) Xenacanthus moorei (Wetland)
 * 632) Xenohystrix crassidens‭ (Savanna)
 * 633) Xenosmilus hodsonae (Grassland)
 * 634) Xianglong zhaoi (Tropical Rainforest)
 * 635) Xiphactinus audax (Coast)
 * 636) Yangchuanosaurus shangyouensis (Shrubland)
 * 637) Yi qi (Tropical Rainforest)
 * 638) Yukon Horse (Equus lambei) (Grassland)
 * 639) Yutyrannus huali (Tropical Rainforest)
 * 640) Zanabazar junior (Desert)
 * 641) Zhejiangopterus linhaiensis (Coast)
 * 642) Zuniceratops christopheri (Shrubland)
 * 643) Zygomaturus trilobus (Shrubland)
 * 644) Zygophyseter varolai (Pelagic)

Unlockable

 * 1) 1840's Iguanodon
 * 2) 1840's Megalosaurus
 * 3) 1960's Allosaurus
 * 4) 1960's Ankylosaurus
 * 5) 1960's Archaeopteryx
 * 6) 1960's Brachiosaurus
 * 7) 1960's Brontosaurus
 * 8) 1960's Dimetrodon
 * 9) 1960's Diplodocus
 * 10) 1960's Elasmosaurus
 * 11) 1960's Ichthyosaurus
 * 12) 1960's Iguanodon
 * 13) 1960's Megalosaurus
 * 14) 1960's Mosasaurus
 * 15) 1960's Pachycephalosaurus
 * 16) 1960's Parasaurolophus
 * 17) 1960's Protoceratops
 * 18) 1960's Pteranodon
 * 19) 1960's Rhamphorhynchus
 * 20) 1960's Smilodon
 * 21) 1960's Stegosaurus
 * 22) 1960's Struthiomimus
 * 23) 1960's Styracosaurus
 * 24) 1960's Trachodon
 * 25) 1960's Triceratops
 * 26) 1960's Tyrannosaurus
 * 27) 1960's Woolly Mammoth
 * 28) 1960's Woolly Rhinoceros
 * 29) 1970's Deinonychus
 * 30) 1970's Oviraptor
 * 31) 1970's Psittacosaurus
 * 32) Desert Leaper (Aquator adepsicautus) (Desert)
 * 33) Helmeted Hornhead (Cornudens horridus) (Taiga)
 * 34) Mud-Gulper (Phocapotamus lutuphagus) (Wetland)
 * 35) Night Stalker (Manambulus perhorridus) (Tropical Rainforest)
 * 36) Posset (Thylasus virgatus) (Tropical Rainforest)
 * 37) Reedstilt (Harundopes virgatus) (Wetland)
 * 38) Vortex (Balenornis vivipera) (Coast)
 * 39) Woolly Gigantelope (Megalodorcas borealis) (Tundra)

Downloadable

 * 1) Featherless Deinonychus
 * 2) Featherless Gallimimus
 * 3) Featherless Ornithomimus
 * 4) Featherless Oviraptor
 * 5) Featherless Struthiomimus
 * 6) Featherless Therizinosaurus
 * 7) Featherless Utahraptor
 * 8) Featherless Velociraptor
 * 9) White Dodo
 * 10) White Giganotosaurus
 * 11) White Smilodon

Food

 * Dinosaur Meat
 * Cycad Leaves
 * Trilobites

Enrichment

 * Sauropod Prey Dummy
 * Horse Prey Dummy
 * Glacier
 * Tar Pit

Shelters

 * Dinosaur Cave

Biomes

 * Benthic
 * Pelagic

Trees

 * 1) Dodo Tree (Sideroxylon grandiflorum) (Tropical Rainforest)
 * 2) Gingko (Ginkgo biloba) (Temperate Forest)
 * 3) Monkey Puzzle (Araucaria araucana) (Shrubland)
 * 4) Rapa Nui Palm (Paschalococos disperta) (Coast)
 * 5) Sago Palm (Cycas revoluta) (Tropical Rainforest)
 * 6) Williamsonia gigas

Plants

 * 1) Great Horsetail (Equisetum telmateia) (Wetland)
 * 2) Sea Lily (Bathycrinus aldrichianus) (Benthic)

Rocks

 * Large Benthic Rock
 * Medium Benthic Rock
 * Small Benthic Rock
 * Large Pelagic Rock
 * Medium Pelagic Rock
 * Small Pelagic Rock

Staff

 * Paleontologist
 * Dinosaur Entertainer
 * Saber-Toothed Cat Entertainer

Minigames

 * Dino Capturing
 * DNA Hunting
 * DNA Sequencing

Campaign Mode

 * Tutorial 1: Extinct Animal Cloning -
 * Tutorial 2: Stopping the Rampaging Dinos -
 * A Park Full of Predators - Build a zoo with at least twenty carnivores; ten from the past, ten from the present. (Difficulty: Hard)
 * Return to the Dinosaur Park - Years ago, a large number of dinosaurs escaped that caused the park to shutdown. It's time to put the dinosaurs back to their exhibits and restore the park into its former glory. (Difficulty: Expert)
 * Problems with the Tyrant King - Try to keep one of the Tyrannosaurus from escaping its exhibit for two months and breed two Tyrannosaurus to have at least one hatchling. (Difficulty: Expert)
 * Monster Shark - Aquire a huge megalodon and its rival, Livyatan, to your prehistoric aquarium. (Difficulty: Expert)