MS-LS2-4

Construct an argument supported by empirical evidence that changes to physical or biological components of an ecosystem affect populations.

  1. Life

    For teens, big problems may lead to meaningful research

    Several teens who competed at the Regeneron Science Talent Search applied their STEM know-how to solve problems they or their communities faced.

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  2. Animals

    What you need to know about ‘murder hornets’

    Two new specimens of the world’s largest hornet have just turned up in the United States. Here’s what to make of them and other alien-hornet invaders.

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  3. Animals

    Tube-dwelling sea creatures may be oldest known parasites

    A fossil bed of clam-like animals from a half-billion years ago is covered in tube-dwelling organisms. These suggest the tube dwellers were parasites, scientists now report.

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  4. Animals

    Going bright may help corals recover from bleaching

    When some corals bleach, they turn neon colors. Flashy hues may be part of a response that helps these corals recover and reunite with their algae.

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  5. Health & Medicine

    Deadly heat: Expected by century’s end, it’s here already

    Instances of hot and humid conditions that threaten human lives are on the rise.

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  6. Animals

    Why you’re spotting more wildlife during COVID-19

    People are seeing more animals than they did before the pandemic. There are many reasons why.

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  7. Health & Medicine

    Our gut microbes love a good workout

    Technology shows how microbes in the body respond to exercise. That helps scientists understand why those microbes keep athletes healthy.

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  8. Animals

    Pesticides can have long-term impact on bumblebee learning

    Pesticide-laced nectar and pollen can permanently harm the brains of baby bumblebees.

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  9. 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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  10. Climate

    Study appears to rule out volcanic burps as causing dino die-offs

    New data on when massive volcanic eruptions happened do not match when the dinosaur mass extinction took place.

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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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