Deep-sea fish can detect prey through pressure changes with their lateral line — before they even see or smell it.

A chameleon changes color primarily for communication and temperature control.

Fact #431 · Nature

A bolt of lightning is about one inch wide but can be miles long.

Fact #2614 · Nature

The Sahara Desert can experience freezing temperatures at night.

Fact #121 · Nature

Sinkholes can form when underground rock dissolves.

Fact #827 · Nature

Deep-sea fish often have flexible bodies to withstand high pressure.

Fact #864 · Nature

Avocados are technically berries — and they evolved to be eaten by giant ground sloths, which are now extinct.

Fact #3416 · Nature

The penguin’s dense feathers create a waterproof barrier.

Fact #895 · Nature

Some trees can communicate with each other using underground fungal networks.

Fact #1884 · Nature