Every historian has informally an anthropology, without ever using the word.
Of course language arose in a Darwinian biological world, because that's all there is, but that world relates only superficially to the pop-biology that circulates informally.
I think I was always informally thinking about choice from when I was a very young child because I was born to Sikh immigrant parents, so I was constantly going back and forth between a Sikh household and an American outside world, so I was going back and forth between a very traditional Sikh home in which you had to follow the Five K's.