Cows can sleep standing up, but they can only dream lying down.
745
A domestic cat can sprint at about 31 miles per hour.
274
When cats are happy, they may squeeze their eyes shut.
10
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
Cats recognise the voice of their owner, but never evolved to care.
22
Travis was a chimpanzee who socialized with humans since birth. He could log onto a computer to look at pictures, watch TV using a remote control, brush his teeth, feed hay to his owner's horses, water plants, and learned the schedule of passing ice cream trucks.
11