Cows can sleep standing up, but they can only dream lying down.
745
An average cat has 1-8 kittens per litter and can have 2-3 litters per year. During her productive life, one female cat could have more than 100 kittens. A single pair of cats and their kittens can produce as many as 420,000 kittens in just 7 years.
10
Dogs sometimes fake being sick to get attention.
26
In 2005, in Africa, it was reported that three lions rescued a 12-year-old girl from kidnappers and guarded her for half a day until help came.
46
The oldest creature ever found was Ming the clam at an admirable 507 years old.
16