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Becoming Naked and Clothed

February 17, 2011 in Teaching Resources

Exploring Human Evolution and Culture through the Study of Lice.

Yesterday evening I took the time to watch Nova Science NOW hosted by Neil DeGrasse Tyson.  Although I enjoyed the entire program, I was especially intrigued by the segment on the research of David Reed at the University of Florida’s Natural History Museum.

This segment discusses how molecular comparisons of our clothing, head, and pubic lice with the head and pubic lice found in chimpanzees and gorillas, respectively were used to infer the time when modern humans began wearing clothing, and when ancestral humans lost most of our hair.  With so much in the news lately about the diversity of human microbe flora, etc… this research could provide a clear example of the distinct niches that are found on the human body.

Watch the 11 minute segment at the Nova ScienceNOW, and then read the summary article In Lice, Clues to Human Origin and Attire from the New York Times, or download and read pdf’s of the scientific research below.

  1. Origin of Clothing Lice Indicates Early Clothing Use by Anatomically Modern Humans in Africa from the journal of Molecular Biology and Evolution.
  2. Pair of lice lost or parasites regained: the evolutionary history of anthropoid primate licefrom BioMed Central
  3. A list and some links to other publications can be found at Dr. Reed’s website.

I think this would make a great bioinformatics/molecular clock activity as well.

American Scientist: Pizza Lunch Podcast

February 4, 2011 in Teaching Resources, Technology

 

 

 

 

 

American Scientist Pizza Lunches are informal lectures where scientists present new research to an audience of non-scientists.  The talks are hosted in Research Triangle Park, North Carolina, at the headquarters of Sigma Xi, the Scientific Research Society, the publisher of American Scientist magazine.  Originally intended to help inform local science communicators about current and controversial topics, the Pizza Lunch talks are now available to anyone online, and new talks are posted periodically during the academic year.

Download individual talks through following the links below (clicking on the image above will take you to the general Pizza Lunch Podcast website).

  1. Whole Genome Analysis in the Clinic
    James Evans, clinical researcher in genetics at the University of North Carolina
    Evans urges us to support genomics medicine research but asks us to temper our enthusiasm until it becomes a proven tool. (April 20, 2010)
  2. Genomic and Personalized Medicine
    Geoffrey Ginsburg, director of the Center for Genomic Medicine, Duke University
    Ginsburg presents advances and ongoing research in personalized medicine, from prescribing cancer drugs to predicting flu symptoms. (March 30, 2010)
  3. Metapopulation Dynamics of Oyster Restoration in Pamlico Sound, NC
    David Eggleston, director of the Center for Marine Science and Technology, North Carolina State University
    Eggleston discusses the challenges of conserving and restoring North Carolina coastal ecosystems, particularly oyster reefs. (January 26, 2010) 
  4. An Empire Lacking Food: The Astonishing Existence of Life on the Deep Seafloor
    Craig McClain, assistant director of science, National Evolutionary Synthesis Center

    McClain explores how the meager availability of food on the deep seafloor shapes the ecology and evolution of the animals that live there. (December 15, 2009)
  5. The Evolution of the Human Capacity for Killing at a Distance
    Steven Churchill, professor of evolutionary anthropology, Duke University
    Churchill presents his research on the evolutionary origins of projectile weaponry, and how weapon use changed interactions between humans and other species—including, perhaps, the Neandertals. (October 20, 2009)
  6. Our Energy Future: Science and Technology Challenges for the 21st Century
    Thomas Meyer, director, Solar Energy Research Center, University of North Carolina, Chapel Hill
    Meyer discusses the status of the world’s energy supply. In particular, he presents the idea that the sun’s energy could be used to make fuels from water and carbon dioxide for heating, transportation and energy storage. (September 24, 2009)
  7. Everything Is Dangerous: A Controversy
    S. Stanley Young, director of bioinformatics, National Institute of Statistical Sciences
    Young critiques statistical analysis by some epidemiologists, especially their multiple testing of data sets obtained from observational studies. (April 22, 2009)
  8. From Cloning to Stem Cells: How Can Pigs Help Us Solve Problems in Human Medicine?
    Jorge Piedrahita, professor of genomics, North Carolina State University College of Veterinary Medicine

    Piedrahita describes his research with cloned swine and how their abnormal growth provides insight into human placental defects, the ways transgenic pigs may help grow human tissue and how pigs could help advance stem cell therapies. (March 25, 2009)

I discovered this site via a twitter link today and thought it might provide another means of bringing scientists, although virtually, into the classroom.  Otherwise, if you don’t have a subscription to the American Scientist, it is one of my favorite periodicals.

How Evolution Gave Us The Human Edge

January 22, 2011 in Teaching Resources, Technology

Click on the image above to access this unique NPR Resources containing

  • 4 Interactives on Brewing a Human, An Upright Primer, Lost Cousins and Fossil Forensics (the last two are a small portion of the Smithsonian Human Origins Initiative)
  • A collection of 20 NPR audio stories previously broadcast on Morning Edition or All Things Considered that provide an eclectic and pretty comprehensive prespective on human evolution.  Topics include, skin color, walking and running, tools and weapons, diet, brain development, talking and language, culuture and belief systems.

I have not used this resource in class having just noticed it while preparing my previous post on the NPR Science site.  If you have used it before and have particular suggestions on its integration please share your experiences with a comment.

Energizing Evolution

January 1, 2010 in Teaching Resources

it, as well as our understanding of it, just keeps going and growing and going…

During the holiday break, I have come across a number of valuable resources (video, audio, and paper) for demonstrating to students that the processes of natural selection and speciation, that Darwin made us aware of 150 years ago this past year, are actually occuring before our very eyes.  

Instead of hypothetical just-so-stories, these resources are user friendly and thought provoking real world examples with organisms and adaptations that students can relate to.  These examples also highlight the work of the people, and the personalities, behind the acquisition of new scientific knowledge.  I commend these scientists and numerous others who understand the importance of communicating science to a sometimes skeptical public and whose efforts have provided us with these wonderful resources and springboards for learning.

 Lizards

Read on to find out about these 7 resources…

Read the rest of this entry →