The reindeer is the only mammal that can see UV light.
17
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
Rattlesnake mating sessions have been known to last more than 22 hours.
232
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
Travis was a chimpanzee who socialized with humans since birth. He could log onto a computer to look at pictures, watch TV using a remote control, brush his teeth, feed hay to his owner's horses, water plants, and learned the schedule of passing ice cream trucks.
11