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Reptiles

Reptiles. Hook. What are the 5 types of reptiles. Types of reptiles Order Chelonia Turtles and tortoises Order Squamata Lizards and snakes Order Crocodillia Alligators and crocodiles Order Rhynchocephalia tuatara. Characteristics of reptiles.

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Reptiles

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  1. Reptiles

  2. Hook • What are the 5 types of reptiles

  3. Types of reptiles Order Chelonia Turtles and tortoises Order Squamata Lizards and snakes Order Crocodillia Alligators and crocodiles Order Rhynchocephalia tuatara

  4. Characteristics of reptiles • Cold blooded – body temperature the same as the environment • Dry, scaly skin • Most lay eggs on land • Internal fertilization

  5. Green Anole Bog Turtle Copperhead American Alligator Reptiles • Antarctica only continent without reptiles • First animal with a backbone to become independent of water for breeding • Lays terrestrial eggs or gives birth to live young

  6. Early marine reptiles Ichthyosaur

  7. Liopleurodon

  8. Eastern Diamondback Rattlesnake Ringneck Snake Coachwhip Black Rat Snake Snakes • All lack legs • Lack ear openings -- Feel vibrations through the ground • Shed their skin

  9. Eastern Diamondback Rattlesnake swallowing a Cottontail Rabbit Scarlet Kingsnake swallowing a Green Anole Snake Feeding • Entirely carnivorous • Swallow prey whole • 2 methods to capture prey for consumption • Constriction • Poison • Of the 2700 species of snakes, only about 300 are venomous.

  10. How to recognize venomous vs. non venomous snakes in the US • Except for coral snake, venomous snakes have vertical pupils and square shaped heads.

  11. Bite of a nonvenomous snake

  12. Venomous snake bite

  13. Aquatic Snakes • Water Moccasin (cotton mouth) • Flashes a bright white mouth when disturbed • The only venomous water snake in the U.S.

  14. Broadbanded water snake

  15. Copperhead

  16. Timber rattler

  17. Coral snake King snake

  18. Diamondback watersnake

  19. Blotched water snake

  20. Sea snakes

  21. Related to cobras • Usually less than 6 feet • Usually will not bite unless bothered. People bitten are usually fisherman sorting their catch. • Totally adapted to the marine environment, but they must breathe air

  22. Tuatara • Only a few species in New Zealand • More closely related to dinosaurs than to lizards.

  23. Lizards • Ears • Distinguishing characteristic from snakes • Variable and diverse • Many islands have species that cannot be found anywhere else on earth. Slender Glass Lizard Fence Lizard Five-Lined Skink Broadhead Skink Slender Glass Lizard

  24. Basilisk

  25. Marine Iguana • Live on the Galapagos islands. • Scrape algae off of rocks in the intertidal zone. • Usually only dive about 5 meters, but large males can dive up to 15 meters and stay down for an hour.

  26. They have salt glands in their nostrils to concentrate and remove salt. They sneeze out the salt.

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