Some prehistoric mammals were small and nocturnal.

Snow leopards use their long tails for balance.

Fact #371 · Animals

Some species of sharks must keep moving to breathe.

Fact #284 · Animals

Some reptiles can live for over a century.

Fact #319 · Animals

A giraffe's heart can weigh over 20 pounds.

Fact #447 · Animals

Elephants communicate using low-frequency sounds.

Fact #51 · Animals

A camel can drink large amounts of water in a short time.

Fact #458 · Animals

Clownfish can change sex during their lifetime.

Fact #361 · Animals

Dragonflies can fly in all directions, including backward.

Fact #352 · Animals