Denmark has twice as many pigs as there are people.
66
The oldest creature ever found was Ming the clam at an admirable 507 years old.
16
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
Only 3% of bird species have penises.
0
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Sharks, like other fish, have their reproductive organs in their chests.
248