Denmark has twice as many pigs as there are people.
66
Only 3% of bird species have penises.
0
The oldest creature ever found was Ming the clam at an admirable 507 years old.
16
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
Dogs have been man's pet for over 14,000 years.
224
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20