Wildfire smoke now regularly affects air quality thousands of miles from fires — a new public health crisis.

Lichens are not a single organism — they are a symbiotic partnership between fungi and algae or cyanobacteria.

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

Lightning does strike the same place twice — tall structures like the Empire State Building are struck hundreds of times per year.

A waterspout is a tornado over water — they can reach heights of 5 km and travel for over an hour.

Angel Falls in Venezuela is the world's highest uninterrupted waterfall at 979 meters.

Your lifetime odds of being struck by lightning are about 1 in 15,000.

Sharks existed before trees.

Sharks have existed longer than trees.