Rattlesnake mating sessions have been known to last more than 22 hours.
232
Dogs have been man's pet for over 14,000 years.
224
The elephant brain weighs about 6,000g.
274
Parrot parents "name" their children with a signature call.
112
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
47
A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250
Domestic pigs average a top speed of about 11 miles per hour.
182