A cat's purr (25–50 Hz) promotes bone healing and reduces stress — in both the cat and its owner.

A sloth can take up to a month to digest a single meal.

Fact #441 · Animals

A koala sleeps for many hours each day.

Fact #490 · Animals

Some frogs can change color depending on temperature or mood.

Fact #548 · Animals

A group of flamingos is called a flamboyance.

Fact #10 · Animals

Some frogs carry their tadpoles on their backs.

Fact #354 · Animals

Some insects have compound eyes made of many lenses.

Fact #513 · Animals

Some spiders can glide through the air using silk.

Fact #369 · Animals

Certain species of ants farm aphids for food.

Fact #360 · Animals