Homo sapiens would not exist in its current form without oxytocin, so yes. We got all materialistic for a while and started treating females as property shortly after we started farming, but that never really changed who we are deep down.
Thanky! I really need to get back to it someday, but parenting has been a lot more than I bargained for. I'm hanging on to hope, though. The kid needs to be flossed now.