|Male and female turtles|
The most important characteristic of the skeleton of turtles is that a large part of the spinal column is welded to the back side of the shell.
Although lacking teeth, they have a beak covering its mandible, like the beak of the birds.
Like all reptiles, turtles are ectothermic, which means that their metabolic activity depends on the external or temperature of the environment.
Turtles shed their skin, but unlike lizards and snakes, they do it gradually. They also molt the shields of the carapace, individually and apparently in no particular order.
|Amaya Valdés working on her model of a turtle|
|Model of the internal organs of a turtle|
|Model of a turtle with its carapace|
|Preparing the terrarium for the turtles|
|Stand ready for the Science Fair|
|Amaya Valdés at the Science Fair 2013|