HS-LS2-8

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

  1. Animals

    Scientists Say: Kleptotrichy

    Based on the Greek words for theft and hair, kleptotrichy is a more common bird behavior than people thought.

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  2. Animals

    Analyze This: Some bats feast on songbirds midflight

    Sensor data reveal greater noctule bats chasing, catching and chewing on birds during nighttime hunts.

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  3. Animals

    Let’s learn about venom

    A bite or puncture from a venomous critter can cause paralysis, flesh rot, organ failure and many more violent — and sometimes fatal — symptoms.

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  4. Life

    Scientists Say: Biodiversity

    The coral reefs at Komodo, one of the Lesser Sunda Islands in Indonesia, are among the most diverse ecosystems on Earth.

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  5. Animals

    Frogs evolved a wide variety of vocal sacs to amplify their ribbits

    Maybe you've seen frogs with ballooning throats, but what about pop-out poofs and fat ear bumps?

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  6. Animals

    Scientists Say: Kleptopredation

    It’s a hunter-eat-hunter world out there, and this feeding strategy gives some double-dipping predators a competitive edge.

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  7. Animals

    Young capuchins are kidnapping baby howler monkeys

    The disturbing habit has emerged among capuchin monkeys on a remote island off Panama. Scientists are baffled — and concerned.

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  8. Plants

    Pollinators send out good vibrations — and plants respond sweetly

    Snapdragon blooms can distinguish between the sounds of pollinators and thieves. They boost or drop the sugar in their nectar depending who’s arriving.

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  9. Animals

    These fish yawn — and it’s contagious

    Zebrafish are the first cold-blooded animals known to behave this way. Contagious yawning may affect other behaviors in these fish, too.

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  10. Animals

    The ‘bone collector’ caterpillar wears its prey as camouflage

    For months, the caterpillar scavenges spider webs for scrapped insect body parts to cover its protective case. Later, that case will serve as its cocoon.

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  11. Health & Medicine

    Three U.S tick species may trigger a mysterious red-meat allergy

    This little-known allergy, known as alpha-gal syndrome, is potentially deadly. Here’s what we know about it — and how to avoid the tick bites that seem to cause it.

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  12. Animals

    Butts of these fly larvae mimic a termite’s face

    Young blowflies found in Morocco look — and smell — like the termites they hide amongst. These tricks help the larvae survive amongst the killers.

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