Valakis vs. Menk: Who Wins?

A few days ago, when I reviewed the Enterprise episode Dear Doctor, we all wondered if the Menk were indeed genetically destined to become their world's dominant species or if the Valakians would find a way out of their genetic dead end.

For the answer, we have to go to The Complete Atlas of Star Trek:
Well, there you go. The planet is eventually overrun with Menk, but the Valakians still hold on as a small, but noticeable minority. More than that, the rechristened Menk planet became a Federation member in 2236, some 30 years before the TOS era.