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    HS-LS4-1

    Communicate scientific information that common ancestry and biological evolution are supported by multiple lines of empirical evidence, including molecular, anatomical, and developmental similarities inherited from a common ancestor (homologies), seen through fossils and laboratory and field observations.
    Home / HS-LS4-1
     Artificial Selection and the Evolution of Domestic Dogs
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    Artificial Selection and the Evolution of Domestic Dogs

    Looking at a wolf and a German shepherd, it is easy to think: "Sure, related." But what about a wolf and a Pekinese? Have you ever seen those dogs? They look like adorable walking footstools! [...]

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     Evidence of Evolution: Homologous Gene Expression in Four Mammal Species
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    Evidence of Evolution: Homologous Gene Expression in Four Mammal Species

    What do a bat, a pig, a mouse, and an opossum have in common? In this lesson plan students will explore both the structural and genetic homology of tetrapods!

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     Convergent Evolution in Animal Locomotion
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    Convergent Evolution in Animal Locomotion

    Fins, wings, and...fractions? Find out how simple measurements revealed a striking convergence among animals as varied as whales, birds, and sea butterflies. (Wondering what a sea butterfly is? [...]

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     Evolution and Health: What is a Mismatch Disease?
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    Evolution and Health: What is a Mismatch Disease?

    What do aching knees, a sore back, diabetes, and poor eyesight have in common, besides being, well, common? You’ll find out in this lesson, but here’s a hint: it has something to do with evolution.

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     From Gene to Disease: Sickle Cell Anemia
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    From Gene to Disease: Sickle Cell Anemia

    Think that evolution always results in disadvantageous traits becoming less common in a population? Think again.

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     Trends in Evolution: Convergence and Divergence
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    Trends in Evolution: Convergence and Divergence

    Modern computer modeling unveils something surprising about a classic example of evolutionary convergence and divergence: the Anolis lizards of the Caribbean.

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