HS-LS1-2

Develop and use a model to illustrate the hierarchical organization of interacting systems that provide specific functions within multicellular organisms.

  1. Animals

    Elusive worm-lizards sport weird, spooky skulls

    CT scans of these mysterious creatures turned up bizarre internal features. They could offer clues about amphisbaenians’ largely unknown behavior.

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  2. Archaeology

    A tattoo experiment hints at how Ötzi the Iceman got his ink

    The findings challenge a common idea about how the mummified man got marked with dark lines.

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  3. Humans

    Let’s learn about fingerprints

    Researchers are still making new discoveries about how our fingerprints form — and how to use them to solve crimes.

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  4. Animals

    This egg-laying amphibian feeds its babies ‘milk’

    Similar to mammals, this caecilian — an egg-laying amphibian — makes a nutrient-rich, milk-like fluid to feed its babies up to six times a day.

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  5. Microbes

    What the weird world of protists can teach us about life on Earth

    Microbes vastly outnumber multicellular life on Earth. A close-up look at protists highlights how much we don't know about the microscopic world.

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  6. Plants

    Rampaging vines are slowly strangling tropical forests

    Called lianas,these vines are growing out of control. They may cause tropical forests to absorb less carbon dioxide — worsening climate change.

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  7. Animals

    Let’s learn about Godzilla and King Kong

    These blockbuster monsters are too big to exist. But if they were real, what adaptations would each bring to battle?

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  8. Science & Society

    U.S. lawmakers look for ways to protect kids on social media

    The U.S. government wants to protect young social media users from exploitation, bullying and more. The companies should play a role in this, it says.

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  9. Health & Medicine

    Health problems persist in Flint 10 years after water poisoning

    Flint, Mich., residents still show health impacts long after a switch in their drinking-water source exposed them to toxic lead and other pollutants.

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  10. Science & Society

    Scientists Say: Model

    Models are representations of real-life systems or processes that we use to ask questions, make predictions and test our knowledge.

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  11. Science & Society

    Music has the power to move us physically and emotionally. Here’s why

    The way music impacts the brain can improve mood and overall health.

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  12. Humans

    Seven steps to boost your mood

    Give yourself some quality “me time” every day. The goal is self-care and expression that can liberate you — and maybe even bring joy.

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