Plant phytolith and water content influence rate of tooth enamel abrasion in vertebrates
(PHYSorg.com Archaeology & Fossils)

Plant phytolith and water content cause differing degrees of tooth enamel abrasion in vertebrates. This is the conclusion reached by an international research team headed by scientists from Johannes Gutenberg University Mainz (JGU). Their study, featured online before print in the journal PNAS, has implications for how tooth wear in extinct animals is interpreted and how this information can be employed to reconstruct their dietary behavior and habitats.