Chapter 29

29.1 CLASS REPTILIA – pg. 852 “to creep” Includes snakes, turtles, tortoises, lizards, alligators, crocodiles, tuataras Dry, scaly skin Claws Gecko

CLASS REPTILIA Gas exchange: lungs Most have 3 chambered hearts Ectothermic Molting - shedding of the old skin Diamondback Terrapins hatching

Hognose snakes hatching Internal fertilization / external development (most)

Galapagos Tortoises Diamondback Terrapin Tortoise Loggerhead Turtle Hawksbill Turtle

Turtle or Tortoise?

CLASS REPTILIA Jacobson’s organ - tastes the air

Only in Thailand!

29.2 Class Aves: pg. 861 includes all birds

CLASS AVES - “birds” All have feathers Not all can fly Peacocks Penguin

CLASS AVES Four chambered heart Endothermic Pelicans

CLASS AVES No teeth

CLASS AVES Preening - feather maintenance Molting - shedding of old feathers Bones - thin & hollow Less bone = less muscle

CLASS AVES Internal fertilization / external development Incubation Gas exchange – Air sacs & lungs

CLASS AVES Variety of: – Legs – Feet – Wings – Eyes – Claws – Beaks

Pelicans

Birds evolved from the Theropod dinosaur