A cassowary is one of the most powerful birds on Earth.

Certain beetles can produce sounds by rubbing body parts together.

Fact #546 · Animals

A woodpecker's skull absorbs shock from repeated pecking.

Fact #393 · Animals

Some species of penguins can swim at speeds of up to 15 miles per hour.

Fact #251 · Animals

Some reptiles can survive long periods without food.

Fact #501 · Animals

Some birds build elaborate nests.

Fact #308 · Animals

Some birds can fly for months without landing.

Fact #164 · Animals

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

Fact #553 · Animals

Bats are the only mammals capable of sustained flight.

Fact #58 · Animals