The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492
Jellyfish as a species are actually older than dinosaurs and sharks.
383
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
In Australia, there are spiders big enough to eat snakes.
20