Human Evolution How did we get here?. Controversy 1871 Darwin published a second book “The Descent of Man” Argued humans are related to African Apes (gorilla.

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Presentation transcript:

Human Evolution How did we get here?

Controversy 1871 Darwin published a second book “The Descent of Man” Argued humans are related to African Apes (gorilla & chimpanzee - primates)

What are Primates? Characteristics: Five flexible fingers Opposable thumbs Grip objects Seize food Have hair Nurse young w/milk Large Brains

Humans & Apes Apes we descended from are extinct Closest relatives of humans are hominids Humans & chimps are 96% genetically similar

What are hominids? Primates (man like) Walked upright on two legs  Bipedal

Apes vs. Monkeys Apes are NOT monkeys Apes have larger brain Apes do not have tails Existing Apes: Gibbons, Orangutans, Gorillas, Bonobos & Chimpanzees

Gibbon Bonobos

Out of Africa Theory Modern humans evolved in Africa between 100,000 and 200,000 years ago Members of one branch leaving Africa about 100,000 years ago.

Supported by mitochondrial DNA analysis since mitochondrial DNA changes every little over time. Humans Today - Nearly identical DNA Out of Africa Theory