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Class: Reptilia

Class: Reptilia. Order: Testudines The oldest of the reptiles…. Testudines ( Chelonii ). Sea turtle or freshwater turtle Reptiles Lay eggs Air-breathing Cold-blooded Scaly skin Turtles Generally considered aquatic Tortoises Land-dwellers who do not swim Terrapins

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Class: Reptilia

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  1. Class: Reptilia Order: Testudines The oldest of the reptiles…

  2. Testudines (Chelonii) • Sea turtle or freshwater turtle • Reptiles • Lay eggs • Air-breathing • Cold-blooded • Scaly skin • Turtles • Generally considered aquatic • Tortoises • Land-dwellers who do not swim • Terrapins • Turtles that like brackish waters

  3. Turtle Anatomy! • Time for Drawings!!!

  4. Turtle anatomy, cont’d • Beak-type • Sharp and Hooked = carnivore! • Broad & Flat = vegetarian! • Neck-type • Cryptodira • Can pull head into shell • Pluerodira • Contract heads to the side (like the snake-neck) • Shell • Fused ribs! • So the turtle/tortoise/whatever can’t leave their shell

  5. Shell Observations • Tortoises • Large & domed = harder for predators to crush • Heavy! • Aquatic • Streamlined = faster swimming & diving • Light – helps prevent sinking • sdfsdf

  6. http://www.youtube.com/watch?v=gOD3ksLF_GE • http://www.youtube.com/watch?v=qC5mHQMn79Y

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