General description

The turtles have changed much from the Herpies, their shells are united laterally what it protects of the predators and the variations in the temperature. But all the shells of the turtles of nowadays are not equal, for example, the turtle baúla (coriacea Dermochelys) has a flexible and thin shell (for that reason they are called to them; "smooth turtles").

 

The marine turtles can live on 150 to 200 years according to their species. 35 27 the marine turtles can reach km/h to km/h swimming in the sea. The marine turtles have a neck conformed by 8 vertebrae can dissuade, it inside of the shell, but generally it has little mobility. The turtles do not have teeth, because they have replaced them by sharp tips in the part superior of his mouth. In addition they do not have external ears, only an internal ear, very efficient. The marine turtles have an orifice which has intention double: in order to expel the excrement and for its reproduction. The lungs of the marine turtles are exactly equal to ours and allow to contain the breathing to the turtle by approximately 10 minutes, then they raise the surface to breathe.