The only thing you need to do is to GENTLY brush your tongue daily, as bacteria can collect in the fissures, causing bad breath. I'm enclosing a link to the couple of lines wikipedia has about it, mainly so you can see the picture there.
Quick Answer. As of 2009, there are 270 species of turtles, and more are being discovered. Turtles have been on the Earth for 230 million years and predate dinosaurs. Turtles have developed multiple habitats and live anywhere except the Arctic and Antarctic. Continue Reading.
Several species of turtles can live for several decades. With this longevity also comes a negative side. It takes several years for turtles to sexually mature (4 to 10 years for a Painted turtle, 14 to 20 years for a Blanding's or Wood turtle, and 15 years for a Snapping turtle). Non breeding turtles are often the targets of predators, automobiles, and pet seekers.