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Primate Evolution. Today’s Objectives: SOL BIO.8a-d. TSW investigate and understand how primates have changed through time, including: Examining fossil records Recognizing how adaptations lead to natural selection. Primates are mammals that have:. Opposable thumbs Large brain
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Today’s Objectives: SOL BIO.8a-d • TSW investigate and understand how primates have changed through time, including: • Examining fossil records • Recognizing how adaptations lead to natural selection
Primates are mammals that have: • Opposable thumbs • Large brain • Good, stereoscopic vision • Ability to brachiate • Flexible elbows for hand rotation • Grasping feet
Early Primates • Appeared 60-65 million years ago • Prosimian • Small bodies • Lemurs, Tarsiers • Anthropoids • Human-like primates • Evolved in Africa
Hominid Evolution • Hominids developed 5-8 million yrs ago • Hominids are bipedal • First hominids were in genus Australopithecus • “Lucy” most famous fossil hominid • More modern hominids were in genus Homo
More recent humans • Homo sapiens • (developed 400,000 years ago) • Neanderthals • Europe arrival (100,000 years ago) • Cro-Magnon • Europe arrival (40,000 years ago) • Americas arrival (12,000 years ago)