The immortal jellyfish (Turritopsis dohrnii) can revert to its juvenile state after reaching adulthood.

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

Fact #1893 · Nature

Lightning can strike the same location multiple times.

Fact #274 · Nature

There are massive structures.

Fact #2402 · Nature

Cashews grow outside the cashew apple fruit — what looks like the nut is actually the seed.

Fact #3606 · Nature

Some volcanoes can erupt underwater without anyone noticing.

Fact #2248 · Nature

Sinkholes can form when underground rock dissolves.

Fact #827 · Nature

Some bacteria thrive in extreme heat near hydrothermal vents.

Fact #900 · Nature

A woodpecker's skull absorbs shock from repeated pecking.

Fact #393 · Nature