Thagomizers (yes, true "Far Side" fans know that's their real name), named for the late Thag Simmons, provide tailside protection for what species? (edited at 8:51 pm, September 21, 2015 (PDT))
Original question: Thagomizers (yes, true "Far Side" fans know that's they're real name), named for the late Thag Simmons, provide tailside protection for what species?
stegosaurus