803 results
803 results for: Sharks
- Humans
Wildlife trade meeting disappoints marine scientists
The 15th meeting of signatories to the CITES treaty ended on March 25 without passing several proposals to protect high-profile fish species.
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2010 Science News of the Year: Molecules
Credit: Happy Little Nomad/Wikimedia Commons Gimme an F Chlorophyll, the pigment that makes the world go ’round, has come in four known flavors for more than 60 years: chlorophylls a, b, c and d. Now scientists have discovered another version of the pigment that allows plants and other photosynthesizing organisms to harness sunlight for making […]
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Big Fishing Yields Small Fish
Researchers map predator loss and predict unstable oceans.
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- Animals
Basking sharks head south for winter
Satellite-tagging data suggest that basking sharks migrate south to the Caribbean in winter.
- Earth
Ancient marine reptiles losing their cool
Warm-bloodedness may help explain the creatures’ evolutionary success, a new study suggests.
- Life
Ingredients of hagfish slime revealed
Figuring out the ingredients still doesn’t explain how the fishes avoid premature mucus explosions
- 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.
- 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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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 […]
- 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.
