Cows can sleep standing up, but they can only dream lying down.
745
A lion in the wild usually makes no more than twenty kills a year.
186
The largest breed of rabbit is the Flemish Giant.
65
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
The Basenji dog is the only dog that is not able to bark.
4
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5