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. Health & Medicine

    Will we all need COVID-19 booster shots?

    Experts say not yet, but booster vaccines may be coming as new SARS-CoV-2 virus variants keep emerging.

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  2. Fossils

    Scientists Say: Dinosaur

    Dinosaurs emerged between 243 and 233 million years ago. While some died out 66 million years ago, others are still with us — birds.

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  3. Health & Medicine

    Some young adults will volunteer to get COVID-19 for science

    Researchers will soon give some healthy people the new coronavirus. Their young volunteers have agreed to get sick to speed coronavirus research.

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  4. Chemistry

    Let’s learn about acids and bases

    Acids give away particles with positive charge. Bases accept positively charged particles. They are both critical for chemical reactions.

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  5. Archaeology

    Harsh Ice Age winters may have helped turn wolves into dogs

    In the Ice Age, Arctic hunters may have turned to some game for their fatty bones. Much of those animals’ meat might have been left to domesticate dogs.

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  6. Genetics

    Scientists Say: Evolution

    Evolution is how species change over time. Individuals in the group vary, and some will pass on their genes. Over time, the whole species changes.

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  7. Plants

    Here’s how giant pumpkins get so big

    Cinderella took a ride in a pumpkin coach. Though real pumpkins do get big enough, here’s why their ride would be uncomfortable at best.

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  8. Life

    Let’s learn about alligators and crocodiles

    Alligators and crocodiles seem similar — but they live in different places and look different, too.

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  9. Animals

    A single chemical may draw lonely locusts into a hungry swarm

    Swarms of locusts can destroy crops. Scientists have discovered a chemical that might make locusts come together in huge hungry swarms.

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