Denmark has twice as many pigs as there are people.
66
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
The Basenji dog is the only dog that is not able to bark.
4
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
The oldest creature ever found was Ming the clam at an admirable 507 years old.
16