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Showing 1-20 of 40 Resources
  • Great Transitions Interactive: Human Origins

    Great Transitions Interactive: Human Origins

    Click & Learn

    Examine fossil skeletons and footprints of early humans and compare them to skeletons of modern humans and chimpanzees to discover how different traits have evolved over time.

  • Developing an Explanation for Mouse Fur Color

    Developing an Explanation for Mouse Fur Color

    Activity

    Students collect and analyze evidence for each of the major conditions for evolution by natural selection to develop an explanation for how populations change over time. Also available in Spanish.

  • Pelvic Evolution in Sticklebacks

    Pelvic Evolution in Sticklebacks

    Data Point

    Scientists used SNP genotyping in populations of freshwater stickleback fish to determine the genetic mutations responsible for the impaired development of pelvises and spines.

  • 3D Scan of Tiktaalik Fossil – Humerus

    3D Scan of Tiktaalik Fossil – Humerus

    3D Model

    3D-scans of fossil bones of Tiktaalik, a creature with a mix of features common to fish and tetrapods.

  • 3D Scan of Tiktaalik Fossil – Pelvis

    3D Scan of Tiktaalik Fossil – Pelvis

    3D Model

    3D-scans of fossil bones of Tiktaalik, a creature with a mix of features common to fish and tetrapods.

  • 3D Scan of Tiktaalik Fossil – Pectoral Fin

    3D Scan of Tiktaalik Fossil – Pectoral Fin

    3D Model

    3D-scans of fossil bones of Tiktaalik, a creature with a mix of features common to fish and tetrapods.

  • 3D Scan of Tiktaalik Fossil –  Body

    3D Scan of Tiktaalik Fossil – Body

    3D Model

    3D-scans of fossil bones of Tiktaalik, a creature with a mix of features common to fish and tetrapods.

  • 3D Scan of Tiktaalik Fossil –  Skull

    3D Scan of Tiktaalik Fossil – Skull

    3D Model

    3D-scans of fossil bones of Tiktaalik, a creature with a mix of features common to fish and tetrapods.

  • New Laetoli Footprints and Hominin Body Size

    New Laetoli Footprints and Hominin Body Size

    Data Point

    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.

  • Origins of Antibiotic Resistance

    Origins of Antibiotic Resistance

    Data Point

    Scientists collected bacteria from locations that had never been exposed to humans or modern antibiotics to determine if antibiotic resistance is newly evolved since the introduction of antibiotics or has evolved independently.

  • Mimicry in a Diverse Community of Arthropods

    Mimicry in a Diverse Community of Arthropods

    Data Point

    Researchers exposed arthropod mimics that use a golden patch to warn of unpalatability to predators with different prey preferences to determine how effective their warnings were.

  • Think Like a Scientist: Natural Selection in an Outbreak

    Think Like a Scientist: Natural Selection in an Outbreak

    Scientists at Work

    (7 min 29 sec) This video brings us to the front lines of the 2013–2015 Ebola outbreak in west Africa and explains how scientists monitored the evolution of the virus by analyzing its genome.

  • Dating Corn Domestication Using Carbon Isotopes

    Dating Corn Domestication Using Carbon Isotopes

    Data Point

    To study the change in diet as human populations changed lifestyles from hunter-gatherers to agriculturalists, scientists measured carbon isotopes in the collagen tissues of human skeletons from North America.

  • Selection for Tuskless Elephants

    Selection for Tuskless Elephants

    Scientists at Work

    (6 min 39 sec) Working in Gorongosa National Park, Mozambique, Dr. Joyce Poole and colleagues made a striking observation: many female elephants lack tusks.

  • Understanding Variation

    Understanding Variation

    Activity

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

  • Thermoregulation in Dinosaurs

    Thermoregulation in Dinosaurs

    Data Point

    Grady and colleagues compared dinosaur fossil evidence with evidence from living animal species to shed more light on the type of thermoregulation that dinosaurs used—ectothermy, endothermy, or mesothermy.

  • Selective Breeding in Maize

    Selective Breeding in Maize

    Data Point

    Researchers performed the longest-running, controlled artificial selection experiment to study whether they could increase the protein concentration of maize (corn) by selective breeding.

  • Origin of a Gene Mutation Causing Early-Onset Alzheimer’s Disease

    Origin of a Gene Mutation Causing Early-Onset Alzheimer’s Disease

    Data Point

    A team of scientists built a pedigree of a large extended family in Antioquia, Colombia, that has a high prevalence of early-onset familial Alzheimer’s disease due to a mutation in the PSEN1 gene. Worksheets also available in Spanish.

  • Moth Mimicry: Using Ultrasound to Avoid Bats

    Moth Mimicry: Using Ultrasound to Avoid Bats

    Scientists at Work

    (10 min 24 sec) This video follows scientists as they uncover the ways in which moth species in Gorongosa National Park use ultrasound to avoid being eaten by bats.

  • Amylase Copy Number and Diet

    Amylase Copy Number and Diet

    Data Point

    A team of scientists investigated whether there is a correlation between the number of AMY1 gene copies and the type of diet (high-starch or low-starch) of a population.

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