Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
The oldest recorded elephant lived for 82 years.
213
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
Denmark has twice as many pigs as there are people.
66
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23