HS-LS2-1

Use mathematical and/or computational representations to support explanations of factors that affect carrying capacity of ecosystems at different scales.

  1. Animals

    Cloning boosts endangered black-footed ferrets

    A cloned ferret named Elizabeth Ann brings genetic diversity to a species that nearly went extinct in the 1980s.

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  2. Animals

    Spiders can take down and feast on surprisingly big snakes

    Snared in sticky webs and subdued by poison, even venomous snakes can become a spider’s soup.

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  3. Plants

    These ferns may be first plants known to work together as ants do

    Staghorn ferns grow in massive colonies where individual plants contribute different jobs. This may make them “eusocial,” like ants or termites.

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  4. Animals

    Urchin mobs can literally dis-arm a predator

    Urchins are important herbivores — but not strict vegetarians. When hungry enough, they may even rip apart their predators for lunch.

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  5. Environment

    Pond scum can release a paralyzing pollutant into the air

    New study finds blooms of blue-green algae can seed the air with a poisonous pollutant.

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  6. Earth

    Only 3 percent of Earth’s land is unchanged by people

    A sweeping survey of land-based ecosystems finds that very few still support all the animals they used to. Reintroducing lost species could help.

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  7. Climate

    Changing climate now threatens northern lakes year round

    Lakes in northern climes are getting warmer, and that’s not good for people, plants or animals.

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  8. 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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  9. Environment

    What you can do to improve soils

    Soils are the life-sustaining structures under our feet. Here are some tips for keeping soils healthy. First rule of thumb: Give more than you take.

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  10. Agriculture

    Healthy soils are life-giving black gold

    Scientists explain why everyone needs to value the soils beneath our feet — and why we should not view them as dirt.

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  11. Agriculture

    Soil (and its inhabitants) by the numbers

    Teeming with life, soils have more going on than most of us realize.

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  12. Animals

    Choked by bacteria, some starfish are turning to goo

    For years, researchers thought gooey, dying starfish were infected. Instead, these sea stars are suffocating. And bacteria may be behind it all.

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