Paleontology; The Study of Human Evolution

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Paleontology; The Study of Human Evolution. Old Skull, New Look. United Learning. 1985. unitedstreaming. 16 February 2006 http://www.unitedstreaming.com/. Some of the Scientists. a. Leakey Family Louis and Mary ii. Began with Olduvai Gorge in Tanzania, East Africa - PowerPoint PPT Presentation

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  • Old Skull, New Look. United Learning. 1985. unitedstreaming. 16 February 2006 http://www.unitedstreaming.com/

  • a. Leakey FamilyLouis and Mary ii. Began with Olduvai Gorge in Tanzania, East Africaiii. Many key discoveries that shaped our knowledge of human originExamples: Laetoli foot prints, Australopithecus boisei, Homo habilis, and Homo erectus

    Cover photo from Time, Nov 1977.From: www.leakey.comFrom: www.leakey.com

  • b. Raymond Darti. Studied fossils found in Taung , South Africaii Taung child; Australopithcus africanus

    Photo from: http://www.talkorigins.org/faqs/homs/specimen.html#taungPhoto from: http://www.talkorigins.org/faqs/homs/rdart.html

  • c. Dr. Donald Johansoni Was told that he was not college materialii Discovered Lucy in 1974 in Hadar, Ethiopia

    http://www.talkorigins.org/faqs/homs/djohanson.htmlhttp://www.asu.edu/clas/iho/johanson.html

  • Characteristics:a 5 Flexible Fingers/Toesb Mammalsc Haird Suckle Their Younge Complex Social BehaviorExamples: Shrews, Lemurs, Monkeys, Apes, Humans

  • i. Hominids have a thumb which bends toward the other fingers.ii. It is used for gripping.iii. Apes also have opposable toes.iv. Humans are the only primates without opposable toes

  • (Prosimians b) ~65 million years ago, dinosaurs became extinctPlants & animals adapted to fill new empty habitats (niches)2 Subgroups of Primates:ProsimiansAnthropoidsDiagram courtesy of: http://www.niu.edu/pubaffairs/RELEASES/2000/MAR/primate/tree.html

  • (a) First primatesWhat characteristic of the prosimians below allows them to be (c) nocturnal and (b) arboreal?

  • i 2 eyes see different images ii Brain merges them together iii Gives greater depth perception

  • a. Evolved from prosimiansb. Largerc. Diurnal (daytime activity)d. Arboreale. Larger brainf. May be Quadrupedalg. May have Prehensile tail (wraps around branches)h. Includes Hominoids and monkeys

  • a. Began as small and arboreal apesb. Now, includes apes and hominidsc. Some quadrupedal some bipedali. May use knuckle-walking

  • Group of hominoidsSeparated from apes 4-5 million years agoProbably began in AfricaHumans & their closest fossil relativesBipedalEnlarged brain

  • Greatest Discoveries with Bill Nye: The Origin and Evolution of Life. Discovery Channel School. 2005. unitedstreaming. 16 February 2006 http://www.unitedstreaming.com/

  • Example of Australopithecusafarensis The oldest hominid fossil ever found3,000,000 years old40% complete

  • Greatest Discoveries with Bill Nye: The Origin and Evolution of Life. Discovery Channel School. 2005. unitedstreaming. 16 February 2006 http://www.unitedstreaming.com/

  • A pair of hominid footprintsIndicated socializationIndicated BipedalismFrom around the time of Lucy

  • Greatest Discoveries with Bill Nye: The Origin and Evolution of Life. Discovery Channel School. 2005. unitedstreaming. 16 February 2006 http://www.unitedstreaming.com/

  • Twice as old as LucyApe-like craniumHuman-like teethSuggests that human evolution was a series of experiments with many branches like a bush