It would be interesting if they could figure out why human natural language is universal across races in the sense that any human can learn any human language from birth. Such comparative linguistics, as far as I can tell, is unknown in the literature.
I'm with Chomsky that the computational cognitive linguistic analysis says human natural language evolved in an evolutionary instant somewhere betwedetails are not yet told (it's not just one gene). We can, however, see how brain computation works here across the animal kingdom.
https://medium.com/liecatcher/the-natural-evolution-of-human-lies-655e983ee6c6