Heat lightning is ordinary lightning from a storm too far away for thunder to be heard.

Trees in a drought will 'talk' to each other through chemical signals in the soil, triggering defensive responses in nearby trees.

Sharks existed before trees.

Seed banks like the Svalbard Global Seed Vault preserve the genetic diversity of the world's crops.

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

A bolt of lightning is about one inch wide but can be miles long.

The deepest living tree roots ever recorded extended 68 meters — found in Echo Caves in South Africa.

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

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