Denmark has twice as many pigs as there are people.
66
Drivers kill more deer than hunters do.
660
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
The octopus does not have a blind spot.
273
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
Cats recognise the voice of their owner, but never evolved to care.
22