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23 de abr. de 2024 · turtle, (order Testudines), any reptile with a body encased in a bony shell, including tortoises. Although numerous animals, from invertebrates to mammals, have evolved shells, none has an architecture like that of turtles. The turtle shell has a top ( carapace) and a bottom ( plastron ).
Turtles, or testudines, are reptiles of the order Testudines, characterized by a special shell developed mainly from their ribs. Modern turtles are divided into two major groups, the Pleurodira (side necked turtles) and Cryptodira (hidden necked turtles), which differ in the way the head retracts.
26 de abr. de 2024 · Sea turtle, any of seven species of marine turtles belonging to the families Dermochelyidae (leatherback sea turtles) and Cheloniidae (green turtles, flatback sea turtles, loggerhead sea turtles, hawksbills, and ridleys). Both families are highly aquatic, and most species only appear on coastal beaches for egg laying.
Description of the Turtle. There are over 356 different species of turtles and tortoises. Turtles in particular (as opposed to tortoises) are aquatic reptiles with webbed feet and hard shells. Their jaws are equipped with hard beaks that help them capture and cut apart food. Some species of turtles have eyes and nostrils situated on the tops of ...
Turtles are reptiles of the order Testudines (all living turtles belong to the crown group Chelonia), most of whose body is shielded by a special bony or cartilaginous shell developed from their ribs. The top part of the shell is called a carapace and the bottom is called the plastron just like a Tortoise.
Animals. Reference. Sea Turtles. 3:29. Sea Turtles 101. Find out about sea turtles' oldest known ancestor, how certain adaptations may have helped the reptiles survive, and the conservation...
Sea turtles (superfamily Chelonioidea), sometimes called marine turtles, are reptiles of the order Testudines and of the suborder Cryptodira. The seven existing species of sea turtles are the flatback, green, hawksbill, leatherback, loggerhead, Kemp's ridley, and olive ridley.
