Search Results for: Bears

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6,871 results

6,871 results for: Bears

  1. Anthropology

    Human ancestors had taste for termites

    Incisions on ancient bone implements found in South Africa indicate that human ancestors gathered termites, a protein-rich food source, more than 1 million years ago.

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  2. Roach females pick losers with good scents

    Male Tanzanian cockroaches lose fights if they have too much of a particular pheromone, but females find it alluring.

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  3. Materials Science

    Scientists develop self-healing composites

    Researchers have developed a composite material that has the ability to repair small cracks within itself, a characteristic that could be used to extend the reliability and service life of electronic and aerospace components.

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  4. Plants

    The bladderwort: No ruthless microbe killer

    A carnivorous plant called a bladderwort may not be a fierce predator at all but a misunderstood mutualist.

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  5. Infection divides two wasp species

    Two tiny wasp species provide the best evidence yet that infection by Wolbachia bacteria can play a role in forming species.

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  6. Health & Medicine

    Immunity’s Eyes

    Proteins called toll-like receptors allow human immune cells to detect microbes.

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  7. Health & Medicine

    Ancient Estrogen

    A jawless fish ancestor may have revealed the most ancient of hormones and how current hormones evolved from it.

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  8. Tech

    Soaking Up Rays

    Although light shines through body parts of a primitive marine sponge much as it does through sophisticated optical fibers for telecommunications, scientists differ on whether sponges hold clues to better fibers for humankind.

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  9. Math

    White Narcissus

    The elegant, swooping forms carved out of wood by sculptor Robert Longhurst often resemble gracefully curved soap films that span twisted loops of wire dipped into soapy water. Alhough these abstract sculptures bear an uncanny resemblance to mathematical forms known as minimal surfaces, they emerge from Longhurst’s imagination rather than from mathematics. An original design […]

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  10. Astronomy

    A Rocky Bicentennial

    Mounting evidence that many asteroids aren't solid rock but collections of loosely bound fragments could have far-reaching implications for elucidating their internal structure, understanding planet formation, and developing strategies to mitigate the threat of one striking Earth.

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  11. Health & Medicine

    Coming to Terms with Death

    Some newly recognized forms of cell death might be harnessed to aid people with cancer and other serious diseases.

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  12. Anthropology

    Evolution’s Youth Movement

    The fossils of ancient children may provide insights into the evolution of modern Homo sapiens.

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