ANTH 102: Exam 3

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Oldowan Toolmakers

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Oldowan Toolmakers

Complex foragers

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Expensive Tissue Hypothesis

Meat eating led to bigger brains

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Paranthropus

Large post canine dentition with small anterior dentition

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First Homo species to leave Africa?

Homo erectus

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NOT a "robust" hominid

Australopithecus africanus

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NOT true of Australopithecus afarensis

Knuckle-walked

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Turnover Pulse

  • Likely cause of Paranthropus

  • Change in species in Africa

  • Drier climate

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What species was Turkana Boy?

Homo erectus

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Who made Oldowan tools?

Homo habilis

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Which fossil group makes a good generalized potential ancestor to all Primates?

Plesiadapiforms

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Omomyids

Galagos and Lorises

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Threat & Display Hypothesis

Bipedalism evolved due to sexual signaling

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Sivapithecus

Orangutans

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Zircon Dating

How scientists determined the age of the Earth

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Humans have the same number of bones as other primates

True

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Aegyptopithecus

Old world monkeys and apes

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Big brains came before bipedalism

False

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Piltdown

  • Large brain, ape-like jaw

  • False link/fake science

  • "Humanity evolved in England

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Proconsul

Apes

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Paleoecology

Uses fossils to understand the paleo-environment

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Humans are highly sexually dimorphic

False

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Taphonomy

The science of understanding the events that occur between the death of the animal and the collection of its remains

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Grassland Ape Hypothesis

Bipedalism evolved for distance hunting in grassy Savannah lands

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Genetic difference between humans and apes

Fused Chromosome 2

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The Thoracic-Lumbar curve develops when a child begins walking

True

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Humans are

Long distance runners

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NOT a bipedal adaptation

Cervical curve

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Evolution is linear

False

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Laetoli footprints

Australopithecus afarensis

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Valgus knee

Bipedalism

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NOT a bipedal running adaptation

Basicranial flexion

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Australopithecus afarensis

  • Sexually dimorphic

  • Bigger brains (500 cc)

  • Bipedal

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Key differences between human and nonhuman primates

  • Bipedalism

  • Canine eruption in different times of life

  • Brain sizes

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