1. Herpetology Lab Study of amphibians and reptiles

2. Amphibians Frogs, toads, newts, salamanders Kingdom Animalia, Phylum Chordata, Class Amphibia Semi-terrestrial (double life) aquatic young, terrestrial adult Metamorphosis (frog life cyle) No amniotic egg Young have gills Cutaneous respiration No scales (skin with mucus) 3 chambered heart No true nails or claws Homodont teeth 10 pairs of cranial nerves Ectotherms

3. Reptiles Lizards, snakes, turtles, tortoises, crocadiles, alligators Terrestrial Amniotic egg Keratinized scales Claws and nails Respiration by lungs No metamorphosis 3 chambered heart Hemipenis in snakes and lizards Some with heterodont and thecodont teeth 12 pairs of cranial nerves Ectotherms

4. Alligator 1. 4 th mandibular (lower jaw) tooth inside mouth when closed (fits into upper jaw) 2. 4 th maxillary (upper jaw) is largest tooth and shows (upper teeth overlap lower) 3. Rounded snout (U shape) Crocadile 1. When mouth is closed 4 th mandibular is visible 2. 5 th maxillary is largest tooth Upper and lower teeth alternate 3. Triangular to pointed snout (V shape) Alligator vs. Crocadile

5. alligator crocadile caiman

6. http://www.sandiegozoo.org/animalbytes/t-crocodile.html Alligator and Caiman Range: alligators are found in the southern United StatesUnited States and eastern China; caimans are found in Central America and South America Habitat: grassy swamps and slow-moving riversChina;Central AmericaSouth Americagrassy swamps and slow-moving rivers Crocodile Range: Mexico, Central and South America, Africa, Southeast Asia,Africa, and Australia Habitat: grassy swamps and slow-moving riversAustralia

8. Mammal Lab Kingdom Animalia, Phylum Chordata, Class Mammalia Mammary Glands Hair or fur (some exceptions) Muscular diaphragm Lower jaw (mandible has 2 halves) Multiple roots on cheek teeth 3 bones in middle ear One left aortic arch on heart Red blood cells without nucleus (when mature) Heterodont, thecodont Bony palate 4 chambered heart Live birth- mouse life cycle Endotherms

9. Flying squirrel

10. Weasel

11. Outside bldg. 7