Some species of jellyfish glow in the dark.

A cheetah is built for speed with a lightweight body.

Fact #470 · Animals

Certain birds use mud to construct their nests.

Fact #562 · Animals

Archaeopteryx is considered a transitional fossil between dinosaurs and birds.

Fact #624 · Animals

Some species of crabs can regenerate lost claws.

Fact #396 · Animals

Certain birds can recognize themselves in mirrors.

Fact #404 · Animals

A wolf can travel dozens of miles in a single day.

Fact #545 · Animals

Elephants communicate using low-frequency sounds.

Fact #51 · Animals

Some species of ants can form bridges using their bodies.

Fact #420 · Animals