Condoms were originally made of animal intestines or linen.
347
Cats lose almost as much fluid in the saliva while grooming themselves as they do through urination!
205
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
Denmark has twice as many pigs as there are people.
66
The Basenji dog is the only dog that is not able to bark.
4
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Bats sleep 18-20 hours per day.
5