Ecosystems: Interactions, Energy, and Dynamics

  1. 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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  2. 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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  3. Plants

    Explainer: The fertilizing power of N and P

    Two elements — nitrogen and phosphorus — help plants grow. When the soil doesn’t have them, farmers might add them in the form of fertilizer.

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  4. 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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  5. Genetics

    Explainer: How CRISPR works

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

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  6. Health & Medicine

    Explainer: What is a vaccine?

    Vaccines give the body’s natural defense system a boost against infectious disease.

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  7. 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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  8. Animals

    Bee hotels are open for business

    Bee hotels are creating a buzz in conservation and research by offering nesting places for wild bees.

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  9. Health & Medicine

    Hunting the mysterious source of a global illness

    Doctors and scientists around the world are scouring the environment for the elusive cause of Kawasaki disease, a harmful childhood illness.

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  10. Animals

    Beware the tap of the narwhal’s tusk

    A new video shows narwhals using their tusks to tap fish before eating them. They might be stunning their prey — or just playing with their food.

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  11. Ecosystems

    Camera catches new fish species — as it’s eaten!

    A video of a lionfish eating a new-found species of fish raises concerns about the threat lionfish pose to undiscovered species in deep reefs.

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  12. Environment

    Trees can make summer ozone levels much worse

    The greenery can release chemicals into the air that react with combustion pollutants to make ozone. And trees release more of those chemicals where it gets really hot, a new study finds.

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