The glass frog has transparent skin on its belly, allowing you to see its heart, liver, and intestines.

A cheetah is built for speed with a lightweight body.

Fact #470 · Animals

Certain insects can mimic leaves to avoid predators.

Fact #463 · Animals

The Arctic fox changes fur color with the seasons.

Fact #373 · Animals

Certain owls hunt silently because of specialized feather structures.

Fact #542 · Animals

A polar bear’s sense of smell is extremely powerful.

Fact #486 · Animals

A toucan’s beak is lightweight despite its size.

Fact #526 · Animals

Sea otters hold hands while sleeping to avoid drifting apart.

Fact #364 · Animals

Some species of octopus can escape through very small openings.

Fact #451 · Animals