Not all Meg teeth come from underwater.
Chatters et al. (Reports, 16 May 2014, p. 750) reported the retrieval of DNA sequences from a 12,000- to 13,000-year-old human tooth discovered in an underwater cave in Mexico's Yucatan peninsula.
Its upper teeth have been found lodged in underwater fiberoptic cables.
I had this idea that maybe when Richard [Dreyfuss] goes underwater to dig the tooth out [of the sunken boat], what if Ben Gardner's entire head comes out of the hole?
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Hooper explores the vessel underwater and discovers a sizable shark's tooth protruding from the damaged hull before he is startled by Gardner's remains and drops the tooth.
To floss their teeth or make some calls they climb the rungs of a ladder underwater and drag themselves over a boulder.
"It was a small cranium laying upside-down with a perfect set of teeth and dark eye sockets looking back at us," recalled diver Alberto Nava of Bay Area Underwater Explorers, a nonprofit conservation organization based in Berkeley.
Roots of the teeth were removed at the cementoenamel junction by a diamond bur operated in high-speed underwater and air cooling.
To make the mermaids more menacing underwater, the faces of the actresses had some digital touch-ups on the underwater scenes, adding sharper teeth and a shimmery fish scale quality on the skin.
