HS-LS2-6

Evaluate the claims, evidence, and reasoning that the complex interactions in ecosystems maintain relatively consistent numbers and types of organisms in stable conditions, but changing conditions may result in a new ecosystem.

  1. Health & Medicine

    Coronavirus outbreak at camp infected more than 200 kids and staff

    Think kids don’t get COVID-19 and spread it? Think again. An outbreak at a Georgia summer camp left 260 people infected. The rate was highest in kids under 10.

    By
  2. Science & Society

    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.

    By
  3. 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.

    By
  4. Oceans

    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.

    By
  5. Tech

    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.

    By
  6. 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.

    By
  7. 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.

    By
  8. 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.

    By
  9. Science & Society

    COVID-19: When will it be safe to go out again?

    No one yet knows when social distancing can end. Experts explain we need 'herd immunity,' which won't be easy and may come at a horrific cost.

    By
  10. Health & Medicine

    Your most urgent questions about the new coronavirus

    Researchers have more questions than answers right now about 2019-nCoV. They’re racing to understand and stop the coronavirus and the health crisis it poses.

    By
  11. 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.

    By
  12. Ecosystems

    Newfound desert soil community lives on sips of fog

    Lichens and other fungi and algae team up to form a 'grit-crust' on the parched soil of Chile’s Atacama Desert. Those species slake their thirst with moisture from coastal fog.

    By