The reindeer is the only mammal that can see UV light.
17
Worker bees must visit around 4,000 flowers in order to make one tablespoon of honey.
5
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Sharks, like other fish, have their reproductive organs in their chests.
248
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
A cow produces around 200,000 glasses of milk in her lifetime.
373
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20