How Do Eldar Reproduce?

They reproduce sexually, with several occasions of mating for a single fetus (DNA is delivered periodically by the male). They do not reproduce often because it is an extremely emotionally intense process for them, and Craftworld Eldar try to keep their emotions under control for the most part.

Can Dark Eldar reproduce?

Eldar reproducing? ... They do reproduce, but aside from abstinence to avoid excess emotion, the birth rate seems to be in decline on an inherent level. The Dark Eldar don't have any such inhibitions, but they rely on a form of cloning for the bulk of their population maintenance.

Are Eldar infertile?

Craftword Eldar: They do reproduce but the process is slow, and the eldar are pretty much all the time hiding, on the run, or fighting to prevent an accident 500 years in the future from causing their destruction.