Cuttlefish can determine the size of a school of shrimp and choose the largest — demonstrating basic numeracy.

Some insects communicate using pheromones.

Fact #469 · Animals

A puffin uses its colorful beak to attract mates.

Fact #510 · Animals

Some species of spiders can survive underwater for short periods.

Fact #414 · Animals

Orcas are highly social animals that live in pods.

Fact #395 · Animals

Some snakes shed their skin multiple times a year.

Fact #485 · Animals

Octopuses have three hearts and blue blood.

Fact #1 · Animals

A lion's roar can be heard from several miles away.

Fact #439 · Animals

Some birds can sleep while flying.

Fact #332 · Animals