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Human Evolution. By: Mr. Fletcher and Mr. Kelly. Chimpanzees are the closest living relatives of humans and share nearly 99 percent of our DNA!. Mutations – Osteogenesis Imperfecta. What are general adaptations of Primates?. 1) Enlarged Brains

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human evolution

Human Evolution

By: Mr. Fletcher and Mr. Kelly

Chimpanzees are the closest living relatives of humans and share nearly 99 percent of our DNA!

slide4

1) Enlarged Brains

  • 2) Opposable Thumbs – allows use of basic tools
  • 3) Complex social systems
  • 4) Adapted to living in trees – Safe from attack, and source of food
  • 5) Teeth (4-cusped)
  • 6) Flexible shoulder, rotating forearm
  • 7) Eyes facing forward (predator adaptation) - Depth perception
slide6

1) Enlarged Brains

  • 2) Opposable Thumbs – allows use of basic tools
  • 3) Complex social systems
  • 4) Adapted to living in trees – Safe from attack, and source of food
  • 5) Teeth (4-cusped)
  • 6) Flexible shoulder, rotating forearm
  • 7) Eyes facing forward (predator adaptation) - Depth perception
slide8

1) Bi-pedalism

  • 2) Pelvic Bones – Due to differences in stature
  • 3) Less Hair – Because of bi-pedalism
  • 4) Skull/ Brain Size – Even larger than the other primates. (Human ~1300cc, gorilla ~500cc)
  • 5) Spinal Column Position
  • 6) Larger Pelvic opening because of larger heads.
  • 7) Humans can extend thumb further across the hand, giving them exceptional ability to grasp and manipulate objects.
slide10

1) Bi-pedalism

  • 2) Pelvic Bones – Due to differences in stature
  • 3) Less Hair – Because of bi-pedalism
  • 4) Skull/ Brain Size – Even larger than the other primates. (Human ~1300cc, gorilla ~500cc)
  • 5) Spinal Column Position
  • 6) Larger Pelvic opening because of larger heads.
  • 7) Humans can extend thumb further across the hand, giving them exceptional ability to grasp and manipulate objects.
slide11

Why do humans ‘control’ the World?

  • Our ‘massive’ brains allow us to...
  • Use multiple complex languages
  • Have highly evolved social behaviours
  • Design and craft sophisticated tools
slide12

References

http://www.scientificamerican.com/media/inline/what-makes-us-human_1.jpg

http://www.gghjournal.com/volume23/2/images/feature2.jpg

http://blog.oregonlive.com/pdxgreen/2008/02/chimp.jpg

http://4.bp.blogspot.com/_E8BpJEni77I/SZmbTvpe8ZI/AAAAAAAAIIY/CfBiwF8garc/s400/bushchimp.jpg

http://www.commquest.at/comenius/images/language_books.gif

http://www.toothclub.gov.hk/en/images/en_1_1_4_img2.jpg