I think the genes are still in circulation. I went through boot camp with a fellow that could have been a model for Neanderthal man exhibits in any museum in the world. Hell of a nice guy.
I had a grade school classmate with the skull/facial features of an ape.
Admittedly this was way back during early Hippiecene era
He wasn't exactly at the top of the class, either. Back then, I was what would later become known as a nerd. Oddly enough, I tended to hang around with the D/F students just because I wasn't into sports and never fit in with the "popular" kids.
I often wonder what happened to him. I can't remember his name of course