Life

  1. Animals

    This spider feeds a type of milk to its babies

    Even after spiderlings start hunting for themselves, they return to mom for milk.

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  2. Ecosystems

    Mosquito repellent could pose risks to baby salamanders

    Two ingredients in bug repellant — DEET and picaridin — can end up in streams. There, they may hurt salamanders but leave mosquitoes alone, a study finds.

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  3. Brain

    Marijuana use may affect decision-making areas in teen brains

    Marijuana use during adolescence may damage decision-making areas of the brain, according to a new study in rats.

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  4. Brain

    Scientists Say: Opioid

    Opioid drugs work in the brain to stop pain. But the drugs also produce pleasure, which can make people want to take them over and over again.

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  5. Ecosystems

    Welcome to the Arctic’s all-night undersea party

    Life teems in the frozen darkness of the Arctic night. But as the ice recedes and people move in, their light pollution may disturb the animals living there.

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  6. Health & Medicine

    Sleepless nights can leave brains feeling anxious

    Pulling an all-nighter boosts anxiety levels — and changes brain activity — the next morning, a new study finds.

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  7. Animals

    Living Mysteries: This complex beast lurks on lobster whiskers

    A tiny animal discovered on a lobster’s whiskers shows that the smallest animals on Earth can be surprisingly complex.

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  8. Tech

    Electro-tweezers let scientists safely probe cells

    These nanotweezers can sample the innards of cells without killing them. They use an electric field to net materials for study. And they are gentle enough to repeatedly probe the same cell.

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  9. Animals

    How wombats make their unique cube-shaped poop

    The elasticity of the wombat’s intestines helps the creature to shape its distinctive scat.

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  10. Ecosystems

    Scientists Say: Symbiosis

    Two species can live together and support each other in a relationship called symbiosis.

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  11. Animals

    How do elephants eat cereal? With a pinch

    Elephant trunks can grab everything from whole trees to cereal bits. To pick up fine grains, they press, then pinch.

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  12. Animals

    Bees stopped buzzing during the Great American Eclipse

    A rare study of bees during a total solar eclipse finds that the insects buzzed around as usual — until the darkness of totality arrived.

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