Some 30 animals have been domesticated, he notes, and in the process every one of them has lost brain volume—typically a 10 to 15 percent reduction compared with their wild progenitors.
A strong claim if true.
I found this book on google scholar and the parts of it I read supported this claim more than refuted it but were not so definitive and absolute.
From the article:
A strong claim if true.
I found this book on google scholar and the parts of it I read supported this claim more than refuted it but were not so definitive and absolute.