Some species of fish can change sex — clownfish are all born male, the dominant one becoming female.

Certain species of ants farm aphids for food.

Fact #360 · Animals

Some beetles produce defensive chemicals to deter predators.

Fact #481 · Animals

The African elephant is the largest land animal alive today.

Fact #403 · Animals

Bats are the only mammals capable of sustained flight.

Fact #58 · Animals

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

Fact #545 · Animals

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

Fact #553 · Animals

Some species of bats use echolocation to hunt in darkness.

Fact #390 · Animals

Some frogs can survive being frozen during winter.

Fact #24 · Animals