HS-LS4-4

Construct an explanation based on evidence for how natural selection leads to adaptation of populations.

More Stories in HS-LS4-4

  1. Life

    How a moth went to the dark side

    Peppered moths and some butterflies are icons of evolution. Now scientists have found a gene responsible for making them so.

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  2. Oceans

    Polar bears swim for days as sea ice retreats

    Melting sea ice is forcing polar bears to swim long distances — up to nine days in one case. Such long treks may be more than the bears can handle.

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  3. Humans

    Slicing meat may have aided human evolution

    An experiment with modern-day humans shows how slicing meat could have saved human ancestors energy — and let their bodies and brains get bigger.

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  4. Animals

    Mates or survival: Which explains a bird’s color?

    When male birds are brightly colored, we assume that’s because their plumage attracts the gals. But a new study with thousands of museum specimens shows that sometimes survival is just as important a factor behind bird color.

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  5. Animals

    Ocean animals have mushroomed in size

    ompared to a half-billion year ago, sea creatures are, on average, roughly 150 times bigger, a new study finds.

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  6. Fossils

    Dinos ‘quickly’ shrunk into birds

    Scientists had long known birds descended from dinosaurs. A study now shows that the morphing from dinos into birds went along with a quick and steady shrinking of their body sizes.

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  7. Fossils

    This dino-bird is super-feathered

    This late-Jurassic dino was also a bird. Its ample coat of feathers emerged before any need for flight.

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