Cats have about 200 million scent receptors.

Polar bears have black skin beneath their white fur.

Fact #26 · Animals

A crocodile can hold its breath underwater for an extended period.

Fact #476 · Animals

A porcupine raises quills as a defense mechanism.

Fact #524 · Animals

A blue whale's tongue can weigh as much as an elephant.

Fact #443 · Animals

A dolphin’s brain is relatively large compared to its body size.

Fact #456 · Animals

A horned lizard can squirt blood from its eyes as a defense.

Fact #538 · Animals

Some species of snakes give live birth instead of laying eggs.

Fact #540 · Animals

Elephants communicate using low-frequency sounds.

Fact #51 · Animals