Goats have rectangular pupils — giving them a 340-degree field of view to detect predators.

Some species of jellyfish are biologically immortal under certain conditions.

Fact #159 · Animals

Some mammals, like bats, use echolocation.

Fact #465 · Animals

A hummingbird can hover in place while feeding.

Fact #484 · Animals

Megalodon was one of the largest sharks to ever exist.

Fact #623 · Animals

Certain fish change sex during their lifetime.

Fact #503 · Animals

Some ants farm fungi as a food source.

Fact #190 · Animals

The platypus is one of the few mammals that lay eggs.

Fact #382 · Animals

Some species of frogs can survive being partially dehydrated.

Fact #444 · Animals