There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
Dogs have been man's pet for over 14,000 years.
224
The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492
The reindeer is the only mammal that can see UV light.
17
Lobsters have blue blood.
476
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Jumping fleas can accelerate 50 times faster than the space shuttle.
218