Condoms were originally made of animal intestines or linen.
347
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
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
The elephant brain weighs about 6,000g.
274
Cats recognise the voice of their owner, but never evolved to care.
22
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