Cows can sleep standing up, but they can only dream lying down.
745
Condoms were originally made of animal intestines or linen.
347
Female kangaroos have three vaginas.
2
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