CAS AN 102 Lecture Notes - Woolly Opossum, Petrous Part Of The Temporal Bone, Continental Drift
27 Feb 2013
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Almost all live in trees (so the traits have something to do with that lifestyle) Visual allows you to see depth and pathways in the trees. Big brain to allow for all the tree learning. There is a lot to smell in trees, and most animals that do live in trees don"t have that. Eyes to the front reduces the space between, which means you are very short sighted. Catlike visual systems to help them look for insects. Teeth indicate that there are signs that the diet was more leafy. Earliest primates in the tertiary period- but the earliest don"t have all the primate synapomorphies (they are the stem group) The earth is a lot colder than it ever was before. Probably a lot to do with continental drift. The plants changed to angiosperms- the plants that tamed animals. Evolved to attract animals to help them reproduce. Then rodents, rabbits, and stem primates (plesiadapiforms, carpolestes)
