1. How do organisms survive with limited resources?

2. Human Evolution

3. CB 52.22 Human Population Growth

4. CB 52.12 What limits Carrying Capacity?…

5. Webpages and Articles about Homo floresiensis (the video) http://www.pbs.org/wgbh/nova/sciencenow/3209/01.htmlhttp://www.pbs.org/wgbh/nova/sciencenow/3209/01.html (longer video) http://video.google.com/videoplay?docid=8604680088784253620 (part 1 of 7)http://video.google.com/videoplay?docid=8604680088784253620 http://ngm.nationalgeographic.com/features/world/asia/georgia/flores-hominids-text http://www.nature.com/nature/focus/flores/index.html

6. H. floresiensis: A new species?

7. Asian island of Flores

8. Liang Bua where remains were found

10. Typical objects found. Tools and bones.

11. Artists rendering of H. floresiensis

12. floresiensis and sapien skull

13. Comparison of size: Pygmy, European, and H. floresiensis

14. Pygmy elephant

15. What about the tools? Was floresiensis “smart”?

16. H. Sapien and H. floresiensis brain

17. Relative brain to body size

18. The shape and size of the brain of H. floresiensis indicates that it was organized differently than the brain of H. sapiens.

19. So…Several individual skeletons were found of a small population ranging in age from ~90,000 - 18,000 years ago. They have relatively small brains, but might have been able to do sophisticated things.

20. Homo floresiensis: Are they a distinct species, and if so, how are we related?

21. Trait diversity may vary in different populations 57”65”73”

22. Human Evolution

23. H. floresiensis: A new species?

24. Yes: the number of similar individuals, the dates of existence (~90,000-18,000 years old), and the different morphology.

25. There is much controversy over H. floresiensis

26. Alternate hypotheses and rebuttals: Skeletons represent humans with brain damage. Skeletons represent humans with severe iodine deficiency: http://dsc.discovery.com/news/2008/03/05/hobbit-human.htmlhttp://dsc.discovery.com/news/2008/03/05/hobbit-human.html Rebuttal to iodine deficiency: http://johnhawks.net/weblog/fossils/flores/cretin-flores-faq-2008.html http://johnhawks.net/weblog/fossils/flores/cretin-flores-faq-2008.html Wrist bones are very different from humans: http://www.sciencemag.org/cgi/content/abstract/317/5845/1743 http://www.sciencemag.org/cgi/content/abstract/317/5845/1743 There is much controversy over H. floresiensis

27. How do organisms survive with limited resources?