The document traces the evolution of human ancestry through key fossil findings over time, beginning in the 19th century. It discusses several important early human species and the researchers who discovered them, including Homo neanderthalensis, Homo erectus, Australopithecus afarensis, and others. The timeline of discoveries is traced up to recent findings in the 2000s that have added pieces to the puzzle of human origins. The document provides context around the ongoing search for fossils and changing classifications of early human species.

1. The American University in CairoChemistry DepartmentSCI 120- Scientific Thinking (Spring 2010)The Mysterious BipedTo: Dr. Aziza EllozyT.A: Sandy Barsoum By: Somaya Ismail Yasmine El-Masry Ziad Shaker Ragy Tawadros

2. Human Ancestry “The Mysterious Biped”

6. How did this Modern Man come to life? How did we get to what we are today as humans living in such diverse places?

7. In his book A Short History of Nearly Everything,

10. Marie Eugene Francois Dubois 1887

11. Homectus 1891 Part of a skull

12. Marie Eugene Francois Dubois 1892 ThighBone

13. Raymond Dart Robert Broom 1924 Taung Child

14. Davidson Black Peking man Homo Erectus

17. Francis Clark Howell 1960 Australopithecus Homo

18. Homo Habilis 1960

19. This decade also gave rise to many other species, and before we know it, it was chaos again as no central authority decides on names of species.

20. Donald Johanson Hadar Ethiopia where Lucy was found LUCY 28% 1974 ? ? ?

21. LUCY is not the missing link...

22. Meave Leaky Kimeu Homo sapiens 5.2-5.8 Million years 2001 2002 7 Million years

23. Australopithecus Afarensis 3.9 million years ago

26. THANK YOU Done By: Somaya Ismail RagyTawadros Yasmine El-Masry Ziad Shaker

27. Credits Dubois: Eugene Dubois." PALEONTHROPOLOGIE. Web. 8 May 2010. http://paleoanthropologie.blogspot.com/2010_02_01_archive.html. Dart:"Raymond Dart." DEN STROE DANSK. Web. 8 May 2010. http://www.denstoredanske.dk/Natur_og_milj%C3%B8/Antropologi/Antropologer/Raymond_Dart. Broom:Robert Broom." WIKIPEDIA. Web. 8 May 2010. http://en.wikipedia.org/wiki/Robert_Broom. Davidson black: "Davidson Black." WIKIPEDIA. Web. 8 May 2010. http://en.wikipedia.org/wiki/File:Davidson_Black.jpg. Howel:"Clark Howell." THE NEW YORK TIMES. Web. 8 May 2010. http://www.nytimes.com/2007/03/15/obituaries/15howell.html?_r=2. Johanson: "Donald Johanson." REASONABLE KANSANS. Web. 8 May 2010. http://reasonablekansans.blogspot.com/2007/11/early-man-fossil-record.html. Leaky: "Meave Leaky." ON DEMAND. Web. 8 May 2010. http://ondemand.psu.edu/listing.php?cat=1&page=3. Koenigswald: "Gustav Heinrich Ralph Von Koenigswald." INSTITUTE OF NETHERLANDS HISTORY. Web. 8 May 2010. http://www.inghist.nl/Onderzoek/Projecten/BWN/lemmata/bwn3/koenigswald.

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