Fenris Master Plan

[JonahFalcon]

Well, you can look at the Vorcha in the Mass Effect universe. They only live to 20, and are explosive breeders.

However, THEIR main advantage is this: they are immune to all sickness. They can adapt to any climate.

In their case, their world is a place not even the Reapers want to try to conquer. It's a death world worse than Tuchanka, so having a short lifespan that's immune to all natural ailments AND breeding quickly is the only way to survive there.

I think they also don't require much food, but I haven't investigated that deep into the lore.

Had Fenris wanted them to have a real advantage with other races, he should have made them either magic immune or extremely magic resistant, and with a low metabolism.