On today's tour, we join our tour guides, Xan and Joe, inside a realistic recreation of a sand worm's mouth where they will be leading an exhibit on the history of teeth. They talk about the origins of teeth ranging from the evolution of sharks, to horses, and eventually humans and discuss early dental practices and myths surrounding tooth decay. All the while, discussing the drastic impact a species' diet and environment can have on their teeth and how our food has become too soft...