Cavechat.org

Check out the article on Page 1 of USA TODAY's issue this morning (Dec 19, 2013): Fifty Shades of Cave Hopping. It suggests that cavers today might not have been the first to have wild and promiscuous sex in caves. Well, something like that!

http://www.toonpool.com/user/997/files/date_caveman_home_midnight_drag_912745.jpg

I'm pretty sure we'd guessed this long ago...