[net.physics] PreMen and bad backs

animal@rice.ARPA (06/21/85)

From:  Carl Rosene <animal@rice.ARPA>

Actually, walking erect does give man something besides a bad back. It gives
him a longer line of sight since his eyes are higher off the ground.
Although this is of questionable use in the jungle of the gorilla; on the
plains, where early modern man likely spent a good deal of time, it would be