List of Flora and Fauna in Arco Iris

Habitats

 * Northern Taiga
 * Western Savannah
 * Southwestern Desert
 * Central Seas
 * Southern Highlands
 * Southeastern Forest
 * Eastern Jungle
 * Northeastern Alpine

List of Flora

 * Giant Knockout Gas Flowers - various mutated purple flowers that emit knockout gas to gas out anyone who pass through.
 * Constricting Trees - Carnivorous trees that devour their prey by constricting them with their branches. Their bark have patterns not unlike various constricting snakes, like anacondas, boa constrictors, and Burmese pythons.
 * Poison Grapevines - grapevines that cause a rash on a person's skin and is very fatal when eaten.
 * Skunkberries - black berries that cause a foul-smelling stench when squashed.

List of Fauna

 * Giant Sidewinder Worm - a seventy-foot-long earthworm that roams the Southwestern Desert by moving like a sidwinder and kills people and swallows them whole with three sets of mouths revealing large dagger-sharp teeth in it.
 * Nandi Bear - a species of large elephant-sized bears with a tawny furry coat, large chocolate-colored spots, a short tail, and mostly bipedal with short forearms. Females often have scars from carrying their young on their backs. Unlike the legendary Nandi bear, that was very dangerous and craved for human brains, the giant Nandi bears are always vegetarians, since they live on fruits and vegetables in the Western Savannah, although they will attack if their young are threatened.
 * Lava Salamander - Large crocodile-sized salamanders with acidic skin that can burn every village in Arco Iris and have a poisonous bite like Gila monsters and shrews.
 * Porculion - A big lion with large sharp quills for a mane and on its back that stabs anyone who gets too close to its cave where it lives in the Southeastern forest.
 * Skunk Bear - Large black bears with the tail and the black and white pattern of a spotted skunk that spray foul odor on anyone who gets into its home in the Northern Taiga.
 * Vampire Frogs - various red-eyed pale frogs with sharp fangs that take anyone for a bite.
 * Vampire Pigs - large black-and-white red-eyed wild boars with sharp fangs that work all night and sleep all day, taking people for a bite.
 * Long-necked Hippo Beast - a large plesiosaur-like hippo that swims entirely in a very large lake in the Eastern Jungle, probably a way for the Star Girls to ride on.
 * The Water Phoenix - a bird that is long-lived when reborn by water waves, unlike the legendary phoenix, that was reborn in ashes by a fire.