Jellyfish have existed for hundreds of millions of years.

Some fish can detect electrical fields in water.

Fact #221 · Nature

Sharks are older than trees — they appeared about 450 million years ago.

Fact #3242 · Nature

Some volcanoes remain dormant for centuries before erupting.

Fact #184 · Nature

Tornadoes form from powerful rotating thunderstorms.

Fact #809 · Nature

Some prehistoric insects grew much larger than modern insects.

Fact #694 · Nature

The penguin’s dense feathers create a waterproof barrier.

Fact #895 · Nature

There are massive structures.

Fact #2402 · Nature

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

Fact #1844 · Nature