Cats have a specialized collarbone that allows them to squeeze through spaces as small as their head.

Some species of birds form lifelong pair bonds.

Fact #537 · Animals

Some amphibians undergo dramatic transformations during metamorphosis.

Fact #493 · Animals

Certain frogs can glide from tree to tree.

Fact #394 · Animals

Some birds migrate thousands of miles each year.

Fact #77 · Animals

Bats are the only mammals capable of sustained flight.

Fact #58 · Animals

A parrot can mimic human speech sounds.

Fact #429 · Animals

Narwhals are known for their long spiral tusks.

Fact #376 · Animals

A hippopotamus can hold its breath underwater for several minutes.

Fact #433 · Animals