Baby Daddy 2 9, 5:54am

'@Scanian'_dreng not perfectly adapted, just more successful at procreation. Extreme example of highly efficient and directed selection for a narrow set of traits looks like this: https://imgur.com/gallery/YxodC
I'd say this took about 30 to 50 generations. That's anywhere from 600 to 1250 years in human terms, depending on number of circumstances.