Velvet worms are considered living fossils — they hunt by spraying sticky slime from their heads.

Dolphins use echolocation to navigate and hunt underwater.

Fact #12 · Animals

Certain insects communicate using vibrations.

Fact #430 · Animals

Octopuses can solve simple puzzles and open jars.

Fact #31 · Animals

A mantis shrimp can strike with the speed of a bullet.

Fact #342 · Animals

Certain frogs can inflate themselves to appear larger to predators.

Fact #377 · Animals

Some birds use tools to extract insects from wood.

Fact #416 · Animals

Polar bears have black skin beneath their white fur.

Fact #26 · Animals

Some marine animals use bioluminescence to produce light.

Fact #208 · Animals