Sharks must keep moving to breathe — if they stop swimming, they suffocate.

Certain birds of prey have exceptionally sharp vision.

Fact #434 · Animals

A rhinoceros has thick skin for protection.

Fact #504 · Animals

Certain birds store food in hidden caches.

Fact #426 · Animals

Some birds can fly at high altitudes over mountains.

Fact #323 · Animals

Some spiders can glide through the air using silk.

Fact #369 · Animals

Some insects can lift many times their body weight.

Fact #213 · Animals

Some birds can sleep while flying.

Fact #332 · Animals

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

Fact #502 · Animals