We ARE still animals when you consider it biologically. I'm not saying it palatable or comfortable to think about, but it's as natural as any other thing we get from the body.
From the article:
Not only are mothers not attracted to the placenta, theyre pretty much revolted by it
Otherwise, human mammals, along with dolphins and some higher primates, are alone in rejecting the habit.
We stopped doing it before recorded history, apparently. And we would have to conclude that there was something about it that was not only not beneficial, but somehow deleterious, or somehow maladaptive or harmful, he said.