human evolution how did we get here?. controversy 1871 darwin published a second book “the descent...

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Human Evolution How did we get here?

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Page 1: 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

Human Evolution

How did we get here?

Page 2: 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

Controversy• 1871 Darwin published a

second book “The Descent of Man”

• Argued humans are related to African Apes (gorilla & chimpanzee - primates)

Page 3: 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

What are Primates?Characteristics:• Five flexible

fingers• Opposable

thumbs• Grip objects

• Seize food• Have hair• Nurse young

w/milk• Large Brains

Page 4: 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

Humans & Apes• Apes we descended from are

extinct• Closest relatives of humans

are hominids• Humans & chimps are 96%

genetically similar

Page 5: 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

What are hominids?

• Primates (man like)• Walked upright on

two legs Bipedal

Page 6: 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
Page 7: 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

Apes vs. Monkeys• Apes are NOT monkeys• Apes have larger brain• Apes do not have tails• Existing Apes: Gibbons,

Orangutans, Gorillas, Bonobos & Chimpanzees

Page 8: 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

Gibbon Bonobos

Page 9: 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

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.

Page 10: 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

• Supported by mitochondrial DNA analysis since mitochondrial DNA changes every little over time.

• Humans Today - Nearly identical DNA

Out of Africa Theory

Page 11: 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