The cochlea in the inner ear contains 3,500 inner hair cells — each tuned to a slightly different frequency.

Curiosity can enhance learning and memory retention.

Fact #973 · Human Body

The eruption of Krakatoa in 1883 was heard thousands of miles away.

Fact #820 · Human Body

The Earth is about 4.5 billion years old.

Fact #172 · Human Body

Giraffes have high blood pressure to pump blood to their brains.

Fact #1250 · Human Body

A king cobra can raise a third of its body off the ground.

Fact #421 · Human Body

Fossilized bones reveal information about prehistoric diets.

Fact #737 · Human Body

DNA carries genetic information in living organisms.

Fact #37 · Human Body

Multitasking often reduces overall task performance.

Fact #950 · Human Body