The rate of male gorilla reproductive genes, on the other hand, is accelerated but not as much as in humans and chimps.
Wu theorized that this could be a result of the animals' mating behavior. Female chimps might mate with several male chimps when in heat, creating intense competition between males.
https://www.wired.com/2000/01/what-matters-most-to-men/
"I've been working on the fruit fly for close to 20 years, usually about sexual function in one way or another. Only in the last two years we decided to take what we learned from the fruit fly," Wu said.
The evolution rate for most genes has an average, but only the male reproductive genes stand out as speedier than the rest, Wu said.
Wu has observed the phenomenon previously in fruit flies, rats, and mice, but this is the first study to look at it in humans. The research appears in the 20 January issue of Nature.
https://scholar.google.com/citations?user=4Gt7BhgAAAAJ&hl=en
Genes and speciation: is it time to abandon the biological species concept?
In the last 20 years, genomic islands have been identified in many speciation events [33–49] (see Table 1 for a compilation). The literature suggests that ‘speciation with gene flow’ is rather common in a wide array of taxa [35–49]. If DNA segments between the genomic islands indeed represent exchanges during speciation, it would seem timely to abandon BSC as the defining concept of species and speciation.
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