I received your reply. So, you did know that exhibit. Being a biologist and an evolutionist, that "humans and other animals" made me smile. Good! :o) I also stumbled with your new posting, I had never read the orginal story but I had heard some very resumed versions. I knew it was from Plato but I didn't know Aristhophanes was involved. Just yesterday I was talking to my Geology students about the meaning of a "Symopsium". Thanks for sharing! Regards, Luis.