Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Jellyfish as a species are actually older than dinosaurs and sharks.
383
Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17
The cat brain weighs about 30g.
167
A dork is a whale's penis.
327
Worker bees must visit around 4,000 flowers in order to make one tablespoon of honey.
5
A dairy cow can produce more milk when listening to music.
446