Before our demonstration, we visited the "Skulls" exhibit now on display at the Academy.
Over 400 sea lion skulls sweep across the wall, greeting visitors in a vivid exposition of "all the same —all different." Every sea lion skull is unique and every skull is from the same species, very much like the Tiparillo's we find and every piece of plastic as well.
We were fascinated by the time-lapse video of the dermestid beetle larvae that exhibit preparers use to clean the flesh from skulls. Oh, that there were a creature able to devour plastic—but then, imagine your car bumper infested, your stroller wheels, your pacemaker.