HS-LS2-8

Evaluate the evidence for the role of group behavior on individual and species' chances to survive and reproduce.

  1. Physics

    Butterflies use jet propulsion for quick getaways

    If you have ever tried to catch a resting butterfly, you know they are surprisingly difficult to nab. A new study helps explain why.

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  2. Animals

    More playtime and meatier meals might reduce kitty kills

    Keeping cats indoors is the best way to prevent them from killing wildlife. But small changes to diet and play can help, too.

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  3. Microbes

    Some microbial hitchhikers may weaken body’s attack on COVID-19

    New research identifies an altered mix of microbes in the body — ones commonly seen in people with poor diets — that may worsen coronavirus disease.

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  4. Animals

    Analyze This: Some dogs quickly learn new words

    Two dogs picked up new words after hearing them a few times during play, but 20 other pets didn’t fare so well at learning the names of new toys.

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  5. 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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  6. Animals

    Unique dialects help naked mole-rats tell friends from foes

    Computer analysis reveals that these social rodents communicate with speech patterns distinct to each colony.

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  7. Animals

    Newfound technique allows some tree snakes to climb wide trees

    When a tree is too wide to climb, brown tree snakes use a lasso-like trick to slowly ascend up to snacks.

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  8. Animals

    Some electric eels coordinate their attacks to zap prey

    Electric eels were thought be to lone hunters — until researchers observed more than 100 eels hunting together. Their coordinated electric attacks corralled prey.

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  9. Animals

    Honeybees fend off deadly hornets by decorating hives with poop

    Bees usually collect pollen and nectar. Scientists were surprised to find that Asian honeybees also gather animal dung to defend their hives.

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  10. Animals

    Explainer: Insects, arachnids and other arthropods

    Arthropods are all around us, but identifying them can be hard. To start, look at the four main groups: chelicera, crustaceans, myriapods and insects.

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  11. Animals

    Africa’s poisonous rats are surprisingly social

    Scientists confirm that the African crested rat can safely cover itself in poison and also find that the rodents may live in pairs — or even family groups.

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  12. Brain

    Loneliness makes our brains crave people

    An area of the brain that lights up when hungry people see food also revs up when lonely people see social activities.

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