The 'ghost apple' phenomenon occurs when freezing rain encases an apple in ice that remains after the apple rots.

The penguin’s dense feathers create a waterproof barrier.

Fact #895 · Nature

Cactus spines reduce water loss and protect against herbivores.

Fact #863 · Nature

The Earth's tilt causes seasonal changes.

Fact #144 · Nature

Volcanoes form where magma reaches the surface.

Fact #326 · Nature

Some fungi create zombies by controlling insect behavior.

Fact #2715 · Nature

The Arctic Circle experiences extreme variations in daylight.

Fact #63 · Nature

The ozone layer is located in the stratosphere.

Fact #140 · Nature

Sinkholes can form when underground rock dissolves.

Fact #827 · Nature