Some species of ants play dead to avoid predators — they curl up and remain motionless until safe.

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

Fact #443 · Animals

Certain species of frogs are active at night.

Fact #519 · Animals

Blue whales are the largest animals known to have ever lived.

Fact #246 · Animals

Some species of ants wage organized territorial battles.

Fact #401 · Animals

A tiger’s stripes are unique like human fingerprints.

Fact #468 · Animals

Emperor penguins can dive deeper than 1,500 feet.

Fact #344 · Animals

Dolphins use echolocation to navigate and hunt underwater.

Fact #12 · Animals

Certain birds store food in hidden caches.

Fact #426 · Animals