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

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

Lightning can strike the same place more than once.

Plato's cave allegory describes prisoners who mistake shadows on a wall for reality.

Cyclones, typhoons, and hurricanes are all the same phenomenon — named differently depending on the ocean they form in.

Lightning can heat air hotter than the surface of the Sun.

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

In 1814, a beer flood in London released thousands of gallons into nearby streets.

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