Life

  1. Ecosystems

    Urchin takeover underlies California’s vanishing kelp forests

    Some 95 percent of kelp forests along its northern coast are gone. Meanwhile, sea otters are helping slow the loss of surviving kelp farther south.

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  2. Life

    Let’s learn about dogs

    From learning the names of their toys to sniffing out viruses in human sweat, dogs are far more than household pets.

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  3. Brain

    Patterns in brain activity can identify who will struggle to read

    Certain patterns of brain activity predict whether teens are strong readers or will struggle. Those diagnostic patterns show up even when doing math.

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  4. Plants

    Dinosaur-killing asteroid radically changed Earth’s tropical forests

    The asteroid collision initially reduced the diversity in what had been sunny tropical rainforests. In time, the forests would become permanently darker.

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  5. Microbes

    Several plant-like algae can morph into animal-like predators

    Single-celled green algae swim through water as free cells. Most use only photosynthesis for their energy. But not all of them, a new study shows.

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  6. Brain

    Explainer: What is a neuron?

    From the moment you are born, cells called neurons sense information, process it and then pass it on. Neurons allow you to do everything that you do.

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  7. Brain

    Search for ‘rewards’ is big driver in remodeling a teen’s brain

    Communication ‘highways’ in the brain undergo a major overhaul as children morph into adults. Dopamine plays a big role in this remodeling project.

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  8. Health & Medicine

    Let’s learn about exercise

    Our bodies — from our muscles to our brains — love a good workout. Scientists are always learning new things about exercise.

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  9. Fossils

    Scientists Say: Dinosaur

    Dinosaurs emerged between 243 and 233 million years ago. While some died out 66 million years ago, others are still with us — birds.

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  10. Fossils

    An ancient hippo-sized reptile may have been a speedy beast

    An Anteosaurus was a hefty reptile with a large snout. Its fossil skull hints that it may have moved fast for its time.

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  11. Animals

    Science and Indigenous history team up to help spirit bears

    When scientists and Indigenous people work together, their efforts can benefit bears and people.

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  12. Animals

    Explainer: Black bear or brown bear?

    If you see a bear, check size, shape and more to find out what type it is.

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