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
The elephant brain weighs about 6,000g.
274
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
Penguins have a gland above their eye that turns saltwater into freshwater.
12