When cats are happy, they may squeeze their eyes shut.
10
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
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
One in three dog owners say they have talked to their pets on the phone.
427
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
Rattlesnake mating sessions have been known to last more than 22 hours.
232