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Origin Of Humans
Origin Of Humans
Origin Of Humans
Origin Of Humans
Origin Of Humans
Origin Of Humans
Origin Of Humans
Origin Of Humans
Origin Of Humans
Origin Of Humans
Origin Of Humans
Origin Of Humans
Origin Of Humans
Origin Of Humans
Origin Of Humans
Origin Of Humans
Origin Of Humans
Origin Of Humans
Origin Of Humans
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Origin Of Humans

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  • 1. The Origin of Humans A Scientific Viewpoint
  • 2. Carl Sagan’s Universe Calendar
    • 24 days = 1 billion years
    • 1 second = 475 years
    • “ Big Bang” January 1
    • Milky Way May 1
    • Solar System September 9
    • Life on Earth September 25
    • First Humans December 31, 10:30pm
    Milky Way
  • 3. Stage 1 4,000,000 BCE – 1,000,000 BCE
    • Hominids --> any member of the family of two-legged primates that includes all humans.
    • Australopithecines
    • An Apposable Thumb
  • 4.
      • Found in Hadar, Ethiopia (1974).
    • Lucy is ~ 3.5 mya
      • Australopithecus afarensis
      • adaptations in Lucy’s hip, leg and foot allowed a fully bipedal means of locomotion
    Lucy
  • 5.
    • Preserved in volcanic ash in Tanzania
      • Discovered in 1978
      • Proved hominids were bipedal walkers at least 3.5 million years ago
      • Most scientists think the footprints were made by A. afarensis, whose fossils are found nearby
    Hominid Footprints
  • 6. Homo habilis (“Man of Skills”) Artist’s representation of a Homo habilis band as it might have existed two million years ago.
    • 612 cc brain
    • 2.3 - 1.6 mya
    • first toolmaker (stone)
    • prognathic face, brow ridge
    • probable meat-eater
    • possibly arboreal
    • discovered in 1960 by Leakeys
    • no speech
  • 7. Stage 2 1,5000,000 BCE – 27,000 BCE
    • HOMO ERECTUS ( “Upright Human Being” )
    • Larger and more varied tools --> primitive technology
    • First hominid to migrate and leave Africa for Europe and Asia.
    • First to use fire ( 500,000 BCE )
    • BIPEDALISM
  • 8. Homo erectus
    • 1891 - Eugene Dubois discovered Homo erectus in Java
    • AKA “Java Man”
    • finds in China called Sinanthropus
    • dates from 1.9 mya to 27,000 years ago
    • 994 cc brain size (compare to 612 for H. habilis )
    Photograph of Nariokotome boy, an early Homo erectus found near Lake Turkana, Kenya.
  • 9. Differing Human Migration Theories Are we all Africans “under the skin”????
  • 10. Stage 3 200,000 BCE – 10,000 BCE HOMO SAPIENS ( “Wise Human Being” ) Neanderthals ( 200,000 BCE – 30,000 BCE ) Cro-Magnons ( 40,000 BCE – 10,000 BCE )
  • 11. Homo neanderthalensis
    • massive brain--about 1,400cc on average
    • large torso, short limbs, broad nasal passages
    • Skeletons date back 200,000 years.
    • Massive brow ridges with protruding nose, jaws, and teeth.
    • Flaked stones that fit in wood handles.
    The skull of the classic Neandertal found in 1908 at La Chapelle-aux-Saints.
  • 12. NEANDERTHALS:
    • Neander Valley, Germany (1856)
    • First humans to bury their dead (with spices)
    • Made clothes from animal skins.
    • Lived in caves and tents.
    • Made Flutes
    • Language?
  • 13. Burial Ceremony in a Cave
      • Neanderthals lived in caves and had ritual burials, such as this depiction from Shanidar Cave, Iraq
  • 14. What happened to Neanderthals?
    • H. neanderthalensis coexisted with H. sapiens for at least 20,000 years, perhaps as long as 60,000 years
    • What happened?
      • Neanderthals interbred with H. sapiens
      • Neanderthals were killed off by H. sapiens
      • H. sapiens drove Neanderthals into extinction by competition
  • 15. Cro-Magnons – Homo sapiens
    • Oldest fossils to be designated H. sapiens .
    • Modern humans who entered Asia and Europe from Africa 100,000 years ago.
    • Made advanced stone tools.
    • Accomplished hunters.
      • Hunted cooperatively.
    • First to have complex language?
  • 16.
    • Cro-Magnons were very skilled cave painters
    • Painting of a horse from a cave in France
    Painting From a Cave in France
  • 17. Homo Sapiens 100,000 yrs ago Art: Cave Paintings, Venuses Lascaux (17,000 yrs old) Oldest paintings: Chauvet (32,000 yrs old) Peche Merle (15,000 yrs old)
  • 18.  
  • 19. The Last Ice Age 70,000 BCE – 10,000 BCE

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