Returns to intelligence

I'm going to tell you a story. For that story to make sense, I need to give you some background context. I have some pretty smart friends. One of them is Peter Schmidt-Nielsen. Peter has an illustrious line of descent. His paternal grandfather was Knut Schmidt-Nielsen, regarded as one of the great animal physiologists of his time. His paternal grandmother was Bodil Schmidt-Nielsen, who became the first woman president of the American Physiological Society.