The fractal geometry of coastlines means their length depends on the scale you measure — the coastline paradox.

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

Fact #1900 · Nature

Some prehistoric insects grew much larger than modern insects.

Fact #694 · Nature

The Amazon rainforest produces vast amounts of atmospheric moisture.

Fact #155 · Nature

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

Fact #2079 · Nature

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

Fact #1887 · Nature

The immortal jellyfish (Turritopsis dohrnii) can revert to its juvenile state after reaching adulthood.

Fact #3244 · Nature

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

Fact #1407 · Nature

Some prehistoric amphibians grew several feet long.

Fact #709 · Nature