Board Thread:General Discussion/@comment-9154802-20170511025535/@comment-27660183-20170513065453

What if there was a 3rd gender that could breed with either of the other 2 genders? Not like a hermaphrodite but something that had some sort of means of mating with the other 2 and maybe depending who it mates with, that could affect the probability of the offspring's gender and maybe gene inheritance. Also, it can't reproduce homosexually so that it doesn't make the other 2 inefficient.

It would be more efficient than 2 genders, because then each gender could reproduce with 66% of the population rather than 50%.