Speleothems (stalactites and stalagmites) grow at about 0.1 mm per year in most caves.

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

Fact #1882 · Nature

Tyrannosaurus rex had teeth that could grow over 12 inches long.

Fact #619 · Nature

Wildfires can create their own weather systems.

Fact #815 · Nature

The Arctic Circle experiences extreme variations in daylight.

Fact #63 · Nature

A sea turtle can navigate using Earth's magnetic field.

Fact #464 · Nature

Some species of bamboo can grow nearly three feet in one day.

Fact #171 · Nature

Tornadoes form from powerful rotating thunderstorms.

Fact #809 · Nature

Some crystals can grow naturally.

Fact #2647 · Nature