Question: What animal lives the longest?

Zara Gladman answered on 24 Jun 2011:

Hey animalvr7! 🙂

There is a species of jellyfish that scientists believe is immortal, or almost immortal! Check it out: http://www.telegraph.co.uk/earth/wildlife/4357829/Immortal-jellyfish-swarming-across-the-world.html

The ocean quahog, which is a kind of mollusc found in the Atlantic sea lives a long time (apparently some have been found that are 400 years old!).

I’ve been studying a very rare animal called the freshwater pearl mussel that also lives for ages… more than 100 years :-O I wouldn’t like to have one as a pet, it would have to come to my funeral!