The tallest tree in the world, Hyperion (a coast redwood), stands 115.9 meters tall in California.

Rainbows form when light refracts and reflects in water droplets.

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

Ants that are infected by a certain fungus climb plants, clamp onto a leaf, and die — allowing the fungus to sporulate.

A bolt of lightning contains enough energy to toast 100,000 slices of bread.

Altruism — acting for others' benefit at a cost to yourself — challenges purely self-interested models of human nature.

Lightning strikes Earth millions of times each day.

The tallest waterfall, Angel Falls in Venezuela, has a continuous drop of 807 meters.

In 1908, a massive explosion flattened forests in Siberia in what is known as the Tunguska event.