Silk from a spider's web is stronger than steel at the same diameter.

Some birds build elaborate nests.

Fact #308 · Animals

Some mammals, like bats, use echolocation.

Fact #465 · Animals

Some ants cultivate fungus as a food source.

Fact #521 · Animals

Certain species of squid can change color instantly.

Fact #558 · Animals

Some species of jellyfish are biologically immortal under certain conditions.

Fact #159 · Animals

A kingfisher dives into water to catch fish.

Fact #573 · Animals

Some species of frogs lay eggs on land instead of in water.

Fact #572 · Animals

A bald eagle builds some of the largest nests of any bird.

Fact #553 · Animals