Lava tubes can extend for kilometers — Hawaii's Kaumana Cave is a lava tube system you can walk through.

Tardigrades can survive extreme radiation, freezing, and even space.

Fact #1887 · Nature

Some deep-sea fish have expandable stomachs to consume rare prey.

Fact #1407 · Nature

You are more likely to die from falling out of bed than from a shark attack.

Fact #2764 · Nature

Peanuts are not nuts — they're legumes, more closely related to beans.

Fact #3411 · Nature

Prehistoric ecosystems were diverse and dynamic.

Fact #754 · Nature

The Amazon rainforest is often called the lungs of the Earth.

Fact #253 · Nature

Some fish can detect electrical fields in water.

Fact #221 · Nature

The Tardigrade can survive the vacuum of space.

Fact #1681 · Nature