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
Dolphins have names for one another.
18
Female kangaroos have three vaginas.
2
The elephant brain weighs about 6,000g.
274
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
The octopus does not have a blind spot.
273
