Ecosystems: Interactions, Energy, and Dynamics

  1. Animals

    Finding out why birds are out of range

    Sometimes people see large numbers of birds outside of their normal range. A student examined how to predict these excursions.

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  2. Health & Medicine

    Chickens spread latest deadly bird flu

    A new bird flu virus threatens to spread outside of China. Experts traced the germ to markets where live chickens are sold.

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  3. Health & Medicine

    Peanuts for baby: A way to avoid peanut allergy?

    Making peanut products a baby food could head off life-threatening peanut allergies later, new data show.

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  4. Animals

    Cats and foxes are eating up Australia’s mammals

    Since the arrival of Europeans in Australia, a startling number of mammal species have disappeared. A new study puts much of the blame on cats and foxes introduced by the early settlers.

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  5. Health & Medicine

    10 things to know about measles

    Many people think that the measles vaccine wiped out the disease — at least in the United States. It hasn’t. And people who were never vaccinated face the primary risk of getting this very serious disease

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  6. Animals

    Hellbenders need help!

    Hellbenders already face threats such as habitat loss, pollution and disease. But climate change could make matters worse. And the problems facing hellbenders could spell trouble for more than just these giant amphibians.

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  7. Plants

    Desert plants: The ultimate survivors

    Creosote, mesquite and other desert plants rely on different adaptations to thrive, even when no rain falls for an entire year.

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  8. Environment

    Immunity: Environment can have big impact

    A study on twins suggests that environmental factors can shape a person's immune system more than genes do.

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  9. Microbes

    Ongoing Ebola outbreak traced to hollow tree

    Scientists suspect the current Ebola outbreak started with bats that lived in a hollow tree in Guinea. The outbreak's first victim, a two-year-old boy, often played in the tree.

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  10. Health & Medicine

    New germ fighter turns up in dirt

    Scientists have found a compound in soil that can kill the microbes that cause anthrax, tuberculosis and other diseases.

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  11. Ecosystems

    Scientists say: Biomagnify

    Chemicals in the environment can build up in an animal’s tissues. Predators who feed on these animals can accumulate more and more of the pollutants, a process known as biomagnification.

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  12. Animals

    Picture This: Winter brings white noses

    White-nose syndrome, caused by a fungus, has killed millions of bats in the eastern United States. Now, scientists show that the disease comes and goes, by season. The finding could help scientists more effectively target any treatments.

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