Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
The cat brain weighs about 30g.
167
When a male honey bee climaxes during sex, his testicles explode and then he dies.
27
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