Board Thread:Warhammer 40k General Discussion/@comment-25686730-20141120041503/@comment-25177957-20141128100212

Well, there are still a few naturally born Dark Eldar known as "Trueborns", whom, in Kabals, are given privilage over the other, lesser Kabalite warriors, but Trueborns can be rare since most Dark Eldar females would rather kill than sit at "home" pregnant. Much of the Dark Eldar are grown in reproduction vats or simply cloned. Although the Dark Eldar are still dying due to the eternal anarchy of Commorragh.

I doubt the Craftworld Eldar are growing their kind in reproduction vats, they're defenantly still procreating through natural means, which is why their losses are harder to replace.