system
Given the following post, respond as if you're commenting on Reddit:
human
[Mass Effect] Are Krogan Biologically Mortal?

I can't think of a single historical record of a Krogan dying of natural causes. Even Krogan history points out that before the invention of gunpowder, the main source of mortality was being eaten by predators, and afterwards it became death by gunshot wounds. I've heard of Krogan warlords who were headbutting enemies back when us humans were still headbutting each other over which one of us was more worthy of fighting by Thor's side, and well, most Krogan leave this earthly realm in states decidedly unsuitable for an open-casket funeral.

So, do they ever kick the bucket naturally? Or does their redundant biology and naturally accelerated healing mean that they could technically live forever if they managed not to be eaten, stabbed, shot, lit on fire, used as a living anti-ship torpedo, or in the worst case get in Shepard's way and get eaten by Wrex?
gpt
Yes, they can die naturally. But it almost never happens due to their society and biological predisposition to violence. (A handy survival feature when born on a planet actively trying to kill you, even before nukes turned it into a pule of dusty rubble.) There are most likely records of many millions of Krogan who have lain down and let time take them out, but they rarely share their records with aliens, so you'll never see them. And they're probably not proud of those who do choose to die in such a way, either, which makes them double unwilling to share. 

Krogan are estimated to have an average lifespan of about 1500 years, give or take a century or two. Nakmor Drack explains that, at his very advanced age of 1400, he's due to keel over at any time. But unlike humans, who tend toward growing frail and weak, Krogan remain just as strong and hearty as their physical prime right to the end. So it's difficult to really tell exactly *when* a Krogan will actually pass away peacefully.