I think I read it somewhere in a trivia thing on Memory Alpha, but I honestly donʻt remember. But the Progenitors seeded common ancestors with their DNA. Which means that species like the Xindi wouldʻve had Progenitor DNA even though they have a multi-facted evolution with reptillian, primate, and arboreal humanoids…

iirc, in Star Trek the Klingons descend from a crab-like ancestor. I mean, yes, I understand what you’re getting at but I still think it’s kinda cool that Klingons are sort of humanoid crabs