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Showing 21-40 of 71 Resources
  • Episode 2: Your Inner Reptile

    Episode 2: Your Inner Reptile

    Feature Film

    (54 min 41 sec) Join Neil Shubin as he links our hair, teeth and hearing to ancient reptilian ancestors. PLEASE N​OTE: Due to international distribution restrictions, these programs can only be streamed in the United States and Canada.

  • Episode 1: Your Inner Fish

    Episode 1: Your Inner Fish

    Feature Film

    (54 min 41 sec) See how the genetic legacy of a fish can be seen today in our own DNA. PLEASE N​OTE: Due to international distribution restrictions, these programs can only be streamed in the United States and Canada.

  • How We Get Our Skin Color

    How We Get Our Skin Color

    Animation

    (3 min 32 sec) This engaging animation shows how human skin cells produce the pigment melanin, which gives skin its color. 

  • The Biology of Skin Color

    The Biology of Skin Color

    Short Film

    (18 min 58 sec) Penn State University anthropologist Dr. Nina Jablonski walks us through the evidence that the different shades of skin color among human populations arose as adaptations to the intensity of ultraviolet radiation in different parts of the world. Also available in Spanish.

  • Dottyback in Damselfish Clothing

    Dottyback in Damselfish Clothing

    Image of the Week

    Dottyback fish change color by altering the proportions of yellow and black pigment cells in their skin to mimic Damselfish.

  • A Billion Heartbeats

    A Billion Heartbeats

    Image of the Week

    The muscles of the mouse’s heart contract about 600 times per minute, or a billion times in its three-year lifespan.

  • Film Guides: The Origin of Humans

    Film Guides: The Origin of Humans

    Film Guide

    The following classroom-ready resources complement Great Transitions: The Origin of Humans, which reveals the history of our evolutionary origins. Also available in Spanish.

  • Great Transitions: The Origin of Birds

    Great Transitions: The Origin of Birds

    Short Film

    (18 min 59 sec) In the second film of the Great Transitions trilogy, paleontologist Julia Clarke takes us on a journey to uncover the evidence that birds descended from dinosaurs. Also available in Spanish.

  • Great Transitions: The Origin of Humans

    Great Transitions: The Origin of Humans

    Short Film

    (19 min 44 sec) Which traits distinguish humans from other primates? When and where did these traits evolve? Analysis of the major fossil finds from Africa, dating back to 4.4 million years ago, provides answers to these questions and reveals the history of our evolutionary origins. Also available in Spanish.

  • One Bone, Two Bones...

    One Bone, Two Bones...

    Image of the Week

    This short-tailed fruit bat embryo shows a pattern of bones in its limbs characteristic of all tetrapods: one bone, two bones, lots of bones, digits. 

  • A Flower That Fits the Bill

    A Flower That Fits the Bill

    Image of the Week

    The bill of the buff-tailed sicklebill hummingbird is perfectly shaped to collect nectar from deep within the Centropogon flower.

  • Grasping Your Inner Monkey

    Grasping Your Inner Monkey

    Image of the Week

    The shape of our hands comes from tree-dwelling ancestors.

  • Film Guides: The Origin of Tetrapods

    Film Guides: The Origin of Tetrapods

    Film Guide

    The following classroom-ready resources complement Great Transitions: The Origin of Tetrapods, which tells the story of the discovery of Tiktaalik, a creature with features common to fish and four-legged animals, or tetrapods.

  • Your Armored Reptile

    Your Armored Reptile

    Image of the Week

    The Cape Cliff lizard sports a bony body armor.

  • Digging Your Inner Fish

    Digging Your Inner Fish

    Image of the Week

    Tiktaalik roseae, also known as the “fishapod,” is an animal that lived about 375 million years ago, with features of fish and four-legged animals.

  • Revealing the Inner Fish

    Revealing the Inner Fish

    Image of the Week

    The fins of the scalyhead sculpin are related to our arms.

  • Great Transitions: The Origin of Tetrapods

    Great Transitions: The Origin of Tetrapods

    Short Film

    (17 min 11 sec) One of the most exciting discoveries in the long history of fossil exploration is Tiktaalik, a creature with a mix of features common to fish and four-legged animals, or tetrapods.

  • 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.

  • Feeding a Hungry Heart

    Feeding a Hungry Heart

    Image of the Week

    An intricate three-dimensional network of blood vessels nourishes the heart.

  • Using Genetic Crosses to Analyze a Stickleback Trait

    Using Genetic Crosses to Analyze a Stickleback Trait

    Activity

    A hands-on activity in which students analyze the results of genetic crosses between stickleback fish with different traits.

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