When cats are happy, they may squeeze their eyes shut.
10
Gorillas can catch human colds and other illnesses.
205
The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
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
Dogs sometimes fake being sick to get attention.
26