http://www.bbc.com/news/science-environment-35248043
I had another thread on a similar topic, could not find it with the seach engine . . . . . .Basically they are saying that the quaint little places of the universe have an environment where stars can both grow old peacefully and have the types of stars that are capable of supporting life. I don't know but I would think that galaxies like the milky way would produce the higher atomic number elements faster because the ratio of condensed matter relative to hydrogen would be greater.