Lenticular clouds form over mountains and look so much like flying saucers that they are often mistaken for UFOs.

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

The Amazon rainforest plays a role in carbon cycling.

A snow leopard’s thick fur helps it survive in cold climates.

Water is the only common substance on Earth that naturally exists in all three states — solid, liquid, and gas — at everyday temperatures.

Prehistoric reptiles dominated land ecosystems.

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

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

The Amazon rainforest supports millions of species.