Fishes
These predatory fish have cartilaginous skeletons and can have up to five rows of teeth. These fish are also closely related to rays and skates.
Sharks
This carnivorous amphibian is the most common of all amphibians. They have multiple methods of defense, including size and poison.
Frog
This legless reptile feeds mainly on mice, frogs, birds, fish, and other small animals.
Snake
These red birds eat seeds and are the state bird of Ohio. The females are typically brown.
Cardinal
These mammals have large teeth that grow constantly and need to be filed down. These animals make burrows and gnaw through things such as wood, glass, rubber, and aluminum.
Mice or rats
These fish are commonly kept as household pets. Despite their name, they are actually almost every color except the one in their name.
Goldfish
These amphibians are actually a type of another amphibian, characterized by dry, bumpy, and leathery skin.
Toad
These semi-aquatic reptiles are covered in scaly armor. When hunting, they float near the top of the water and ambush their prey.
Alligator or crocodile
These flightless birds live mainly in Africa and Antarctica. They are preyed upon by sea lions and leopard seals.
Penguin
These mammals are considered "man's best friend" and eat a variety of meat.
Dog
A picture of this fish first appeared in 2010 on a popular Australian TV show, The Gruen Transfer. The deflated appearance of this fish is caused when deep sea fisherman reel it to the surface quickly, causing the delicate tissues in its body to be destroyed.
Blobfish
These amphibians are a type of another amphibian. These creatures have webbed feet and a paddle-like tail that give them a mobility advantage in their mainly aquatic habitat.
Newt
These four-legged reptiles come in all sizes and colors. They can be found on every continent except for Antarctica.
Lizard
These flightless birds went extinct in 1662 due to hunting by humans and invasive species, as well as habitat destruction. They lived in Mauritius, an island off the coast of Madagascar.
Dodo
These mammals have elongated snouts and are endemic to the Australia-New Guinea region and Indonesia. The desert variety of this animal is extinct. It is best to stay away from these mammals, as they can carry diseases such as plague and typhus.
Bandicoot
Dolphins commonly use the toxins from these fish to induce hallucinations, much like humans use hallucinogenic drugs.
Pufferfish or blowfish
These amphibians are semi-aquatic, as opposed to their aquatic counterparts. This animal's moist skin, along with its well-developed toes and long tail allow it to live on land and dig into soil.
Salamander
These terrestrial reptiles are able to pull themselves into a shell when threatened.
Tortoise
These flightless birds are the largest living bird. Their eggs are the largest of any bird species.
Ostrich
These mammals are the smartest in the animal kingdom. They are able to solve puzzles and remember individual faces.
Human
This fish is likely the origin of myths about sea monsters and sea serpents, despite the fact that it is harmless. The giant variation of this fish is the longest bony fish alive, reaching up to 8 meters in length.
Oarfish
These elusive amphibians live underground or in stream substrates. They can easily be confused with snakes or worms because of their legless body.
Caecilian
These extinct marine mammals first appeared in the late Triassic period and had long necks for a larger feeding range.
Plesiosaurs
This small bird, native to New Zealand, has an elongated beak and lives in burrows. When pregnant, the egg takes up 20% of the mother's body.
Kiwi
These mammals are one of two that lay eggs. These creatures are commonly confused with hedgehogs and porcupines, despite having a longer snout.
Echidna