Color blindness is more common in men, affecting about 8% of males but only 0.5% of females.

The Earth's interior is layered into crust, mantle, and core.

Fact #338 · Human Body

The hatchetfish has a flattened body adapted to deep water.

Fact #1414 · Human Body

The McGurk effect shows how visual cues can alter what we hear.

Fact #1472 · Human Body

Certain reptiles regulate body temperature through basking.

Fact #527 · Human Body

The human eye can detect a single photon.

Fact #1706 · Human Body

The human nose can distinguish thousands of different scents.

Fact #107 · Human Body

Cats can rotate their ears independently.

Fact #1336 · Human Body

Water is the only natural substance that commonly exists as a solid, liquid, and gas on Earth.

Fact #175 · Human Body