Search Results for: Sharks

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778 results
  1. Humans

    Water’s Edge Ancestors

    Human evolution’s tide may have turned on lake and sea shores.

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  2. Life

    An oceanic endeavor

    Marine census catalogs creatures that roam all corners of the seas.

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  3. Animals

    Basking sharks head south for winter

    Satellite-tagging data suggest that basking sharks migrate south to the Caribbean in winter.

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  4. Earth

    Ancient marine reptiles losing their cool

    Warm-bloodedness may help explain the creatures’ evolutionary success, a new study suggests.

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  5. Life

    Ingredients of hagfish slime revealed

    Figuring out the ingredients still doesn’t explain how the fishes avoid premature mucus explosions

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  6. Life

    Parenthood: Male sharks need not apply

    A second case of a virgin shark birth suggests some female sharks may be able to reproduce without males.

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  7. Chemistry

    2009 Science News of the Year: Molecules

    Tangles of collagen IV chains link at globules via sulfur-nitrogen bonding (illustrated above). Credit: Courtesy of Science/AAAS New bond in the basementBasements house hidden treasures — including a chemical bond never before seen in living things. Scientists have discovered that collagen fibers in the basement membrane — a tough, structural layer of cells that surrounds […]

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  8. Science Past from the issue of June 6, 1959

    Space Flight Succeeds — Two little monkeys, one clad in a space suit and the other lying in a special capsule with her knees drawn up under her, were blasted 300 miles into space on Thursday, May 28, from Cape Canaveral, Fla., the National Aeronautics and Space Administration has revealed. Drama of the experiment was […]

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  9. Earth

    Studies aim to resolve confusion over mercury risks from fish

    Several new papers suggest strategies by which American diners can negotiate a mercury minefield to tap dietary benefits in fish.

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  10. Life

    Briny deep basin may be home to animals thriving without oxygen

    Creatures living deep in the Mediterranean without oxygen would be a remarkable first, biologists say.

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  11. Paleontology

    Ancient fish with killer bite

    Dunkleosteus clamped down on prey with three-quarters-of-a-ton bite force.

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  12. Animals

    Dolphins wield tools of the sea

    A long-term study of dolphins living off Australia’s coast finds that a small number of them, mostly females, frequently use sea sponges to forage for fish on the ocean floor.

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