Denmark has twice as many pigs as there are people.
66
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
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
When cats are happy, they may squeeze their eyes shut.
10
The octopus does not have a blind spot.
273