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Lecture

Generalized Dentition.docx

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Department
Anthropology
Course
ANTH 1120
Professor
G.Crowther
Semester
Winter

Description
1. Generalized Dentition a. Bunodont molars – chew on a wide range of things i. Bears – omnivores b. Defense/food 2. Reduced Olfactory Systems a. Reduced sense of smell i. Reduction in snout size to house the soft tissue for smelling ii. Flattened face iii. Comparing Fox to Chimpanzee b. Color vision (would only makes sense if you work during the day) and diurnal living i. Aye Aye – long thin fingers to dig out stuff 3. Presence of a Petrosal Bulla a. Bony covering that protects the inner ear b. Useful for primate evolution c. Not sure what it is used for 4. Enclosed Bony Eye Orbits a. Open eye sockets (cats) b. Post-orbital bar (bobcat – behind eye orbit) c. Post-orbital closure (primates – importance of vision) 5. Large Brains a. “Encephalization” – ratio of brain to body size b. mouse < cat < macaque < gorilla < human
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