Some crabs can regrow lost legs.

A polar bear's fur is actually transparent.

Fact #391 · Animals

Whales are mammals and must breathe air.

Fact #265 · Animals

Certain species of ants farm aphids for food.

Fact #360 · Animals

Some birds migrate using landmarks and stars.

Fact #477 · Animals

Certain birds store food in hidden caches.

Fact #426 · Animals

Some mammals, like bats, use echolocation.

Fact #465 · Animals

Archerfish shoot jets of water to knock insects off branches.

Fact #346 · Animals

A tarantula can survive for weeks without food.

Fact #353 · Animals