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
Mosquitoes don't just bite you, they also pee on you.
11
A giraffe's kick is so powerful that it can decapitate a lion.
216
The elephant brain weighs about 6,000g.
274
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
Gorillas can catch human colds and other illnesses.
205
The most expensive cow in the world was sold in 2009 for $1.2 million.
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