Snakes have two sex organs. See more

Lobsters have pale blue blood. See more

A bird "chews" with its stomach. See more

25% of all fires of unknown origin are rat-caused. See more

In the last 4000 years, no new animals have been domesticated. See more

Dolphins have bigger brains than the brains of humans See more

Male lions can sleep for up to 20 hours a day. See more

A jellyfish is 95 percent water. See more

One quarter of all creatures on the planet are beetles. See more