User blog comment:Supahbadmarine/User Learning Lab/@comment-9465750-20120718184204/@comment-2253300-20120719133337

I can prove that Space Marines can not live forever. It is actually rather simple to check. There aren't any active Space Marines from the HH. If they could live that long then why aren't there any? The Eldar have individuals from then. Then you guys are saying, "but Supah, the Eldar don't live in constant warfare like the Space Marines do". Then the simple answer is to look at their Chaos controlled brothers. There are numerous warriors from back in the Horus Heresy, and they live no less violently than their Loyalist cousins. So why don't we have a Marine that is 10k+ that isn't in a Dreadnought? It is because time does eventually wear at the body of a Space Marine, it just takes longer. Just out of curiosity is everyone sure that the salamander that has been mentioned is actually a Marine and not just a Nocturnian Salamander?