Dro-Darsha t1_j50nokv wrote on January 19, 2023 at 4:09 PM

Reply to comment by Sylvurphlame in Given that reproduction is difficult or impossible when both animals have different numbers of chromosomes, how did so many species evolve to have so many different numbers of them? by MercurioLeCher

It’s not enough to have one or few viable offspring though. Also they have no good way to find each other, so they need to be able to reproduce with the other chromosome count until they reach a critical number

Dro-Darsha t1_j06pzen wrote on December 14, 2022 at 1:53 PM

Reply to comment by liquid_at in What is the evolutionary advantage of primates losing endogenous Vitamin C production? And are there nowadays humans who are able to produce their own Vitamin C? by yeetussonofretardes

And it's not just that the gene can spread. New broken versions of the gene will keep popping up everywhere all the time. Without a mechanism to sieve those out, they will eventually drown out the working versions by sheer numbers.

You could also say: the advantage is that your offspring doesn't have to die if the gene has mutated.