Anthro - Example Insectivores-High pointy cusps...

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2/23 Living Analogies Snout Size-Shortened and the face is getting flatter. Orbital Convergence/Binocular Vision The External Tail-Balances weight on a branch. Terrestrial forms or on the ground has a shorter tail than a herborial form (in trees). Limb Proportions-a clue to locomotor type. Our legs are much longer than our arms. The limbs that are the longest are the most important for locomotion. Hands and Feet-Help provide insight into the type of locomotion. Long fingers or toes points toward trees. The Ankle Vertebral Flexibility-How flexible is the back. Lemurs have high flexibility. The Molar Teeth-Most common thing you find in fossil record. Good indication of diet.
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Unformatted text preview: Example Insectivores-High pointy cusps. Folivores-High Pointy cusps but not as much as insectivores. Frugivores-Fruit Eating. Lower more rounded cusps and broad flaring basins for mashing fruit. ◦ The incisor teeth-to take a bite of apple but don't mash with them. • Primate Social Organization ◦ Sympatric ◦ Allopatric-never come into contact. Habitats are seperate. ◦ Potential selective pressures affecting group formation in primates. ▪ Food Competition of foraging hypothesize ▪ Predation pressure hypothesis-safety in numbers ▪ Better access to mate ▪ Assistance rearing offspring hypothesis. ▪ Infanticide hypothesis....
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