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  • 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.

  • Sex Verification Testing of Athletes

    Sex Verification Testing of Athletes

    Click & Learn

    This interactive explores the biology of sex determination and development in humans, set against the backdrop of the different sex testing policies implemented throughout sports history.

  • 3D Scan of Tiktaalik Fossil – Humerus

    3D Scan of Tiktaalik Fossil – Humerus

    3D Models

    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 Models

    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 Models

    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 Models

    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 Models

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

  • How Animals Use Sound to Communicate

    How Animals Use Sound to Communicate

    Click & Learn

    Using elephants, finches, bats, and moths, as case studies, explore different aspects of how animals use sound to communicate.

  • Virus Explorer

    Virus Explorer

    Click & Learn

    Explore the similarities and differences of a variety of viruses by sorting them based on structure, genomic make-up, host range, transmission mechanism, and vaccine availability.

  • Alzheimer’s Disease: Piecing Together the Evidence

    Alzheimer’s Disease: Piecing Together the Evidence

    Click & Learn

    This interactive explores evidence from brain anatomy, tissue histology, and genetic studies to reveal possible targets for the treatment of Alzheimer’s disease.

  • Origin of Birds With Quiz

    Origin of Birds With Quiz

    Interactive Videos

    (18 min 59 sec) Embedded quiz modules test students’ understanding as they watch a short film about the evidence that showed birds descended from dinosaurs.

  • Comparative Anatomy of the Domestic Chicken

    Comparative Anatomy of the Domestic Chicken

    Click & Learn

    Trace the evolutionary history of birds by comparing the shapes and structures of certain bones in a chicken to those of some of its extinct and living relatives. Also available in Spanish.

  • How We Get Our Skin Color Interactive

    How We Get Our Skin Color Interactive

    Interactive Videos

    (3 min 32 sec) This interactive animation about the biology of skin color provides stop points at which students can further explore the material through additional text and illustrations, videos, questions, and simple interactive widgets.

  • Lizard Evolution Virtual Lab

    Lizard Evolution Virtual Lab

    Virtual Labs

    In the Lizard Evolution Virtual Lab students explore the evolution of the anole lizards in the Caribbean by collecting and analyzing their own data.  

  • Explore Your Inner Animals

    Explore Your Inner Animals

    Click & Learn

    This interactive explores different anatomical features of the human body and what they reveal about the evolutionary history we share with other organisms, including earlier, long-extinct species.

  • Cells of the Immune System

    Cells of the Immune System

    Click & Learn

    An overview of the immune system, concentrating on the roles played by B and T lymphocytes, and the antigen-presentation system.

  • Immunology Virtual Lab

    Immunology Virtual Lab

    Virtual Labs

    This virtual lab teaches the procedures of performing an ELISA test to determine whether a particular antibody is present in a patient's blood sample.

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