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Exploring the World of Reptiles and Birds

Dive into the fascinating world of reptiles and birds, from the unique characteristics of reptiles like turtles and snakes to the adaptations for flight in birds. Learn about their diverse behaviors and special sense organs that make them successful creatures on land and in the air.

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Exploring the World of Reptiles and Birds

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  1. Unit 9Chapter 31Reptiles and Birds

  2. What is a Reptile? • Ectotherms with dry, scaly skin, with claws on their toes • More advanced 3 chambered hearts

  3. What is a Reptile? • Amniotic eggs • Allows reptiles to be successful on land

  4. Diversity of Reptiles • Turtles and tortoises • The only Reptiles with hinged shells • Crocodilians • The only Reptiles with 4 chambered hearts

  5. Diversity of Reptiles • Lizards • Includes the largest lizard, the Komodo Dragon • Snakes • Includes rattlesnakes, copperheads, water moccasins, & coral snakes

  6. Diversity of Reptiles • Snakes feed in a variety of ways: • Constrictors kill prey by suffocation • Venomous snakes kill prey by poisoning • Most snakes simply grab prey and swallow it whole

  7. Diversity of Reptiles • Reptiles have special sense organs: • “Pit” of rattlesnakes allows them to detect heat of warm-blooded prey • Jacobson’s organ in roof of snakes mouth allows them to detect odors brought in by forked tongue

  8. What is a Bird? • Class Aves • Feathers, modified scales that provide insulation & flight • Wings, power provided by muscles attached to sternum (breastbone)

  9. What is a Bird? • Other adaptations for flight include hollow bones, high metabolism maintained by 4 chambered heart & air sacs • Endotherm, maintains a nearly constant body temperature that does not depend on environment

  10. Diversity of Birds • A bird’s lifestyle is determined by its type of beak and feet.

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