My second source is an article:

Cameron, Deborah. (2009). Sex/Gender, Language and the New Biologism. Applied Linguistics, 31(2), 173-192.

This article discusses the arguments on whether biology or socio-cultural issues determine learning and language in males and females. I am using this article to gain an understanding of the main theories of "biologism" as well as the ideas behind the socio-cultural theories. There is a section on the evolution of language where the author discusses nature vs. nurture and how language evolved as a means of survival. There is some scientific information about how the brain functions differently in males and females and how the differences are possible causes for learning abilities/disabilities. The main themes of the article are gender and language.