Denmark has twice as many pigs as there are people.
66
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
The seahorse is the only fish to have a neck.
12
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12