LS1 LAB ASSIGNMENT

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Andrea Kim Professor Kane  LS1 Dem 2D April 12, 2016 Natural Selection in the Fossil Record What morphologic characteristics of Hyracotherium suggest that it lived in thick, closed canopy  forest? - Small limbs and digitigrade: they didn’t have to run fast or far distances - Bunodont molar type: they didn’t eat grass, they were omnivores How did the increase in grasslands beginning in the Miocene influence the morphology of horse  teeth and jaws? - Increase in grasslands meant that their main source of food was mostly grass. In order to  break down the grass, their molar type had to be more rough and they needed more teeth.  Their mandible also deepened to be able to grind the grass down. How did the morphology of horse limbs change as they increased in size? What is the 
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