A group of crows is called a murder, a group of ravens is called an unkindness.

Many birds use Earth's magnetic field for navigation.

Fact #388 · Animals

A koala sleeps for many hours each day.

Fact #490 · Animals

Some birds can fly at high altitudes over mountains.

Fact #323 · Animals

Certain octopus species are known for their intelligence.

Fact #495 · Animals

Some sharks detect electrical signals from other animals.

Fact #128 · Animals

A hyena’s jaw is powerful enough to crush bone.

Fact #502 · Animals

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

Fact #246 · Animals

Some insects have compound eyes made of many lenses.

Fact #513 · Animals