The pistol shrimp cannot hear its own snap — the sound exceeds the upper limit of its hearing.

Certain reptiles regulate body temperature through basking.

Fact #527 · Human Body

Dust storms can reduce visibility to near zero.

Fact #850 · Human Body

Early humans hunted megafauna during the Ice Age.

Fact #700 · Human Body

A horned lizard can squirt blood from its eyes as a defense.

Fact #538 · Human Body

A dog’s nose print is unique, similar to a human fingerprint.

Fact #1347 · Human Body

Hippopotamuses secrete a reddish fluid that helps protect their skin.

Fact #1246 · Human Body

Your brain predicts events before you consciously experience them.

Fact #1742 · Human Body

The human heart has four chambers.

Fact #306 · Human Body