HS-LS2-2

Use mathematical representations to support and revise explanations based on evidence about factors affecting biodiversity and populations in ecosystems of different scales.

  1. Animals

    When prey get scarce, these jellies become cannibals

    Invasive comb jellies may feast on their larvae if massive population booms in summer deplete their prey.

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  2. Animals

    Minecraft’s big bees don’t exist, but giant insects once did

    Big bees buzz in Minecraft. In our world, blocky bees might starve and be stuck on the ground. Yet long ago, giant insects did roam our planet.

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  3. Health & Medicine

    How to find the next pandemic virus before it finds us

    Wild animals carry viruses that can sicken people. Monitoring those viral hosts that pose the greatest risk might help prevent a new pandemic.

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  4. Microbes

    Check out the communities of bacteria living on your tongue

    Bacteria scraped off the tongue offer a window into how the microbes structure their communities.

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  5. Environment

    Greener than burial? Turning human bodies into worm food

    Composting human bodies yielded good results — and good soil — in one small study. It could become an alternative to burial or cremation in one state.

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  6. Science & Society

    Science isn’t just for scientists

    It doesn’t take an advanced degree or a lab to do science. All you need is curiosity and an interest in learning something new every day.

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  7. Health & Medicine

    What ‘community’ spread of coronavirus means

    Health experts warn there are probably many undetected cases already in the United States, raising chances the disease will soon be widespread.

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  8. Health & Medicine

    Search speeds up for vaccine against the new coronavirus

    Scientists are investigating unusual ways to make drugs to prevent viral infections. One may even be able to treat already sick people.

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  9. Animals

    Analyze This: Shimmering colors may help beetles hide

    Delve into data showing how brilliant colors that shift as a viewer — or predator — moves may help iridescent insects blend in.

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  10. Health & Medicine

    Explainer: What are allergies?

    Sometimes the body’s immune system works too well, like a smoke alarm that blares every time you cook pizza. The results can range from uncomfortable to potentially life-threatening.

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  11. Animals

    Drones might one day capture a dolphin’s breath in midair

    High-speed footage of dolphin spray reveals that droplets blast upward at speeds close to 100 kilometers per hour.

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  12. Health & Medicine

    The many challenges of corralling a coronavirus outbreak

    The Chinese government has quarantined millions of people in hopes of limiting spread of a new coronavirus. But no one yet knows how much this will help.

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