The coconut crab is the world's largest land invertebrate, with a leg span of up to 1 meter.

Ravens can solve complex problems in experiments.

Fact #380 · Animals

A polar bear’s sense of smell is extremely powerful.

Fact #486 · Animals

Penguins can drink salt water because of specialized glands.

Fact #362 · Animals

Some sharks detect electrical signals from other animals.

Fact #128 · Animals

Sea otters hold hands while sleeping to avoid drifting apart.

Fact #364 · Animals

An adult giraffe can clean its ears with its tongue.

Fact #248 · Animals

A lion's roar can be heard from several miles away.

Fact #439 · Animals

Some birds cache food for later consumption.

Fact #461 · Animals