The polar vortex is a persistent area of low pressure over the poles — when it weakens, cold air spills south.

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

Fact #2216 · Nature

The Amazon rainforest produces vast amounts of atmospheric moisture.

Fact #155 · Nature

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

Fact #1809 · Nature

Rainforests are home to a vast range of biodiversity.

Fact #70 · Nature

The Amazon rainforest supports millions of species.

Fact #302 · Nature

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

Fact #2155 · Nature

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

Fact #619 · Nature

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

Fact #3416 · Nature