Identical twins have different fingerprints — shaped by unique positions in the womb.

Antibiotics have saved millions of lives since their discovery.

Fact #1196 · Science

Fossils form when organisms are preserved in sediment over millions of years.

Fact #678 · Science

The Earth's magnetic field originates in its molten outer core.

Fact #234 · Science

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

Fact #627 · Science

Particles can exist in multiple states until observed.

Fact #1770 · Science

The Earth's inner core is primarily iron and nickel.

Fact #150 · Science

Time moves slower in stronger gravitational fields.

Fact #1821 · Science

The discovery of insulin earned a Nobel Prize in 1923.

Fact #1207 · Science