Jellyfish as a species are actually older than dinosaurs and sharks.
383
The largest earthworm on record was found in South Africa and measured 22 feet.
151
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
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