The brain can make judgments about trustworthiness in under 100 milliseconds.

The first forests appeared during the Devonian period.

Fact #710 · Human Body

The fangtooth fish has some of the largest teeth relative to body size in the ocean.

Fact #1392 · Human Body

Some insects have compound eyes made of many lenses.

Fact #513 · Human Body

Certain sea slugs can incorporate stinging cells from their prey.

Fact #566 · Human Body

Operation Mongoose aimed to destabilize Cuba in the early 1960s.

Fact #1069 · Human Body

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

Fact #175 · Human Body

Water covers more than 70% of Earth's surface.

Fact #149 · Human Body

The Earth spins at 1000 mph.

Fact #1704 · Human Body