Handwashing with soap reduces diarrheal disease by 40% — one of the most cost-effective health interventions.

In 1954, a scientist allowed himself to be bitten by mosquitoes to study malaria transmission.

Fact #997 · Science

Sound cannot travel through a vacuum.

Fact #136 · Science

Ants do not have lungs and breathe through small openings in their bodies.

Fact #351 · Science

The human brain operates on about 20 watts of power.

Fact #1737 · Science

Fossilized pollen helps scientists understand ancient ecosystems.

Fact #722 · Science

The Earth's core generates geothermal heat.

Fact #293 · Science

The stegosaurus had a brain about the size of a walnut.

Fact #627 · Science

Volcanic eruptions can produce lightning within ash clouds.

Fact #844 · Science