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  • New Laetoli Footprints and Hominin Body Size

    New Laetoli Footprints and Hominin Body Size

    Data Points

    Scientists were excavating a site in Laetoli, Tanzania when they uncovered two new sets of hominin tracks located about 150 meters south of the tracks found by Mary Leakey in the 1970’s. They estimated the heights of the two individuals using the size and shape of the footprints.

  • Patterns in the Distribution of Lactase Persistence

    Patterns in the Distribution of Lactase Persistence

    Activities

    Students explore the geographic distribution of lactase persistence around the world by analyzing real data collected by scientists.

  • Understanding Variation

    Understanding Variation

    Activities

    This lesson complements the film The Biology of Skin Color and discusses variation in human skin color and polygenic inheritance. Also available in Spanish.

  • Zebrafish and Skin Color

    Zebrafish and Skin Color

    Activities

    This lesson complements the film The Biology of Skin Color and explores how experimental work in zebrafish led to a better understanding of the role of the gene SLC24A5 in human skin color.

  • Human Skin Color: Evidence for Selection

    Human Skin Color: Evidence for Selection

    Activities

    This case study is based on the short film The Biology of Skin Color. Students use real data to propose hypotheses, make predictions, and justify claims with evidence. Also available in Spanish.

  • Human Feet Are Strange

    Human Feet Are Strange

    Activities

    In this hands-on activity students examine the evidence for the evolution of human bipedality as revealed by a trail of fossil footprints. Also available in Spanish.

  • Lactase Persistence: Evidence for Selection

    Lactase Persistence: Evidence for Selection

    Activities

    This activity provides a case study in human evolution that connects genotype, phenotype, culture, and graphical analysis skills. Also available in Spanish.

  • Human Evolution Within the Tree of Life

    Human Evolution Within the Tree of Life

    Posters

    The poster from the 2011 Holiday Lectures on Science, Bones, Stones and Genes: The Origin of Modern Humans. It provides a unique look at the classic "tree of life" and features a timeline of various hominid fossils and their stone tool usage.

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