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Reptiles

Reptiles. Adapted for Life On Land. Ectothermic All reptiles are ectotherms meaning “cold-blooded.” THINK! – How do cold-blooded animals maintain their body temperature? Whatever the temperature that their environment is becomes their body temp Skin

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Reptiles

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  1. Reptiles

  2. Adapted for Life On Land • Ectothermic • All reptiles are ectotherms meaning “cold-blooded.” • THINK! – How do cold-blooded animals maintain their body temperature? • Whatever the temperature that their environment is becomes their body temp • Skin • Reptiles have dry, tough skin covered with scales • Scaly skin helps keep water in their bodies and protect them • Kidneys • Clean the blood of waste and excretes it as urine • The kidneys concentrate urine so much that the animal loses little water • Egg with Shell • A reptile egg has a leathery shell tokeep it moist • This egg is called an amniotic egg

  3. Lizards • Features • These reptiles have skin covered with overlapping scales • Feeding • Most lizards are carnivores. • THINK! – What do carnivores eat? • meat • To the right is a Boyd's Dragon found in the Kuranda Rainforest of Australia.

  4. Snakes • Features • Snakes have no legs, no eyelids, no ears, and just one lung. • Snakes such as rattle heads and copperheads have venom glands attached to their fangs. • Feeding • All snakes are carnivores. • Let’s check out some snakes seen at the Australia Zoo

  5. Venomous Snakes of Australia Fierce Snake – World’s Most venomous snake! Black Tiger Snake

  6. Local Snakes of Australia Carpet Python – A harmless Snake you find around suburban areas! Great if you have a rodent problem! Green Python – A stunning snake that blends into the Rainforest greenery!

  7. Turtles & Tortoises • Features • A turtles gender is determined by the incubation temperature of the eggs. • Feeding • Some turtles are carnivores and some are herbivores like the Galapagos tortoise! • THINK! – What does a herbivore eat? • Plants

  8. Alligators & Crocodiles • Features • THINK! – How can you tell the difference between an alligator & a crocodile? • Alligators have broad, round snouts with only a few visible teeth when their mouths are shut. • Crocodiles have pointed snouts with most of their teeth visible when their mouths are shut. • Feeding • The largest reptiles still living on Earth and are also carnivores.

  9. Enjoying the Croc Show At the Australia Zoo!

  10. Let’s Cruise the Daintree River & Try to Spot Some Crocs!

  11. Can You Spot a Croc? Our fearless leader on the boat!

  12. The Second Sighting

  13. The Third Sighting

  14. We were the Luckiest Group! A baby hatchling not more than a month old!

  15. Cool Reptile Facts • Most reptiles have a 3-chambered heart. Crocodiles have 4 chambers. • By 2080, 20% of lizard species will be extinct due to global warming. • The Nile Crocodile can reach 20 feet long and weigh up to 1,650 lbs. (largest reptile!) • A King Cobra can deliver enough venom in one bite to kill 20 people. • Snakes use their forked tongue to sense. • Green Anacondas can weigh up to 550 lbs. • Black Mamba is the world’s deadliest snake. • Most newborn snakes are born with a single tooth. Why?

  16. Critter Cards • Select one of the following reptiles: lizards, snakes, turtles, alligator, or crocodile to research. • Use the template to take notes on your reptile. • Then, arrange the information on a 5” X 8” unlined index card. You may choose to use the computer to generate your information.

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