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PRIMATES

PRIMATES. Phylogeny and Cladistics Locomotion Dominance in Society. What are Primates?. Humans Great Apes Lesser Apes Monkeys Tarsiers Lorises Lemurs. Features that differentiate Primates from other Mammals:. Nails instead of claws—wide sensory pads

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PRIMATES

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  1. PRIMATES Phylogeny and Cladistics Locomotion Dominance in Society

  2. What are Primates? • Humans • Great Apes • Lesser Apes • Monkeys • Tarsiers • Lorises • Lemurs

  3. Features that differentiate Primates from other Mammals: • Nails instead of claws—wide sensory pads • Flexible hands and feet—grasping ability • Enhanced visual sense—reduced sense of smell • Brain enlargement • Tendency toward complex social lives

  4. The closest living relative to Humans are the Chimpanzees. But how do we know that?

  5. In past years it’s been confusing to determine which species were more closely related in the grouping of Gorilla, Chimp and Human.

  6. Sources of evidence: • Fossil Record—Bone morphology • DNA—Humans share 98.8% of the DNA of Chimps • Homologous Characteristics (Cladistics)

  7. Tools for Phylogenetic AnalysisPhylograms and Cladograms • Phylogram: branch length measures something. Ex: number of changes or time

  8. CladogramsBranches do not include the aspect of specific time.Indicates relationships among organisms based on homology.

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