The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492
The head of a jellyfish is called the "Bell."
6
The seahorse is the only fish to have a neck.
12
A tortoise named Adwaita lived to 255 years old. To put it into perspective, he was born before the United States of America existed and his death was announced on CNN (1750-2006).
12