Reply #3: I picked it up from the article

[TZ]

He is trying to prove that animals think in human like patterns. I suspect some sort of animal rights agenda here. Specifically this..
" has been an outspoken advocate of the idea that animals possess many of the abilities that we think of as uniquely human."
I did a lot of study in animal behavior in college (ethology) and to me his research sounds very hinky---like he's starting not from the null hypothesis but from a presumption of his own that he is trying to prove. In simple terms.."I'm going to prove that animals are just like people but with fur". But thats just my feeling on this. Evolutionary psychology is all kind of...questionable to me.