Toothless Old Man
It seems that Homo Erectus (now there's a name to conjure with!) lasted on earth for the better part of 1.7 million years. If we do as well, Homo Sapiens will still be around in 1,700,2013!
I particularly like Toothless Old Man, second from right. Give him spectacles, a hearing aid, and a cane, and you might see him on Main Street this afternoon!