Crows can recognize human faces and remember people who have wronged them — then pass this knowledge to offspring.

Some marine animals use bioluminescence to produce light.

Fact #208 · Animals

Some birds use tools to extract insects from wood.

Fact #416 · Animals

A sea star can regrow lost arms.

Fact #425 · Animals

Some frogs can survive being frozen during winter.

Fact #24 · Animals

Owls can rotate their heads up to about 270 degrees.

Fact #38 · Animals

A moose has long legs adapted for walking in snow.

Fact #518 · Animals

Some species of sharks must keep moving to breathe.

Fact #284 · Animals

Some species of ants can form bridges using their bodies.

Fact #420 · Animals