Dogs have been domesticated for thousands of years.

Some birds can see ultraviolet light.

Fact #120 · Animals

A leopard can carry prey heavier than itself up a tree.

Fact #452 · Animals

Elephants can detect distant thunderstorms through ground vibrations.

Fact #347 · Animals

Dolphins use echolocation to navigate and hunt underwater.

Fact #12 · Animals

Some species of sharks must keep moving to breathe.

Fact #284 · Animals

A polar bear's fur is actually transparent.

Fact #391 · Animals

Some marine animals use bioluminescence to produce light.

Fact #208 · Animals

Certain frogs can inflate themselves to appear larger to predators.

Fact #377 · Animals