Humans - Freak Animals

A recent exchange with my pal Finback stirred up some talk about how weird humans are compared to the rest of the mammals, if not the rest of the higher vertebrates. Here today we see research suggesting were freaks in our own human family tree. This graphic gives a nice evolutionary comparison of us and our cousins which can cause all sorts of consternation. While the research here tries to separate us with our lack of brow ridges and other facial features, I'm curious as to the sexual practices of Neanderthals and whether they are as bizarre as our rituals. Anybody know where I could dig that info up? I wonder if there are any of those latent Neanders out there I could probe about their sexy thoughts.