HS-LS2-8

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

  1. Animals

    Orca snot leads to a whale of a science-fair project

    DNA found in the mucus of orcas suggests that even though the traits of family pods may differ, these marine mammals all appear to belong to a single species.

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  2. Health & Medicine

    How many ants is the best number of ants? More than one, fewer than 100

    How many ants does it take to make the best decision? This teen found that four to six is just right.

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  3. Animals

    Chemicals from the world’s longest animal can kill cockroaches

    The stuff in this sea worm’s slime can kill off green crabs, too.

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  4. Oceans

    Ocean heat waves are on the rise — and killing coral

    Ocean heat waves are becoming hotter and more frequent. And one can be blamed for the 2016 coral deaths on the Great Barrier Reef.

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  5. Animals

    In a colony, king penguins act like a liquid

    Is this a living liquid? King penguins move around within their colonies, clearing out some space, and then refilling it. That behavior resembles a liquid, scientists conclude.

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  6. Life

    Fighting ‘like an animal’ may not be what you expect

    Evolution has produced a broad range of conflict styles. And some of the best examples come from outside the world of the familiar.

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  7. Materials Science

    Light could make some hospital surfaces deadly to germs

    A new surfacing material can disinfect itself. Room lighting turns on this germ-killing property, which could make the material attractive to hospitals.

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  8. Animals

    Analyze This: Electric eels’ zaps are more powerful than a TASER

    Shocking! A biologist reached his hand into a fish tank and let an electric eel zap him. It let him measure precisely how strong a current it could unleash to defend itself.

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  9. Health & Medicine

    Analyze This: Flu vaccine’s protection varies

    Getting a flu shot every year is an important way to protect yourself and those around you — even if the vaccine isn’t 100 percent effective.

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  10. Physics

    Disabilities don’t stop these experts in science and tech

    People with disabilities are as varied as the careers some of them pursue in science, technology, engineering and math.

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  11. Genetics

    Explainer: How CRISPR works

    Scientists are using a tool called CRISPR to edit DNA in all types of cells.

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  12. Animals

    Listening to fish love songs can predict their numbers

    Gulf corvinas croak for mates while in groups of millions. By listening to their undersea serenades, scientists may be able to estimate how many are out there.

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