Eh. . . . yeah? I'm not sure that's a very strong criticism. We're much more similar to other mammals than we are different from them, so our understanding of h

Eh. . . . yeah? I'm not sure that's a very strong criticism. We're much more similar to other mammals than we are different from them, so our understanding of human behavior provides a very strong basis for understanding other animals' behaviors. There's a whole book about that sort of thing, by a fairly well-respected scientist in the field: https://en.wikipedia.org/wiki/The_Expression_of_the_Emotions_in_Man_and_Animals https://en.wikipedia.org/wiki/The_Expression_of_the_Emotions...