A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
Dogs have been man's pet for over 14,000 years.
224
A cow produces around 200,000 glasses of milk in her lifetime.
373
Rattlesnake mating sessions have been known to last more than 22 hours.
232
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
The reindeer is the only mammal that can see UV light.
17