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Science News Archive - April 17, 2009

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Pig farmers and environmentalists in Germany are calling on the EU to rescind the patent for a genetic technique used to breed heavier pigs.

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Scientists have once again found cause to marvel at the brilliant tenacity of life.

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The kinds of devastating droughts that claimed the lives of more than 100,000 people in Africa’s Sahel region in the 1960’s and 70’s may represent a normal natural occurrence rather than an anomaly, according to new research.

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A volcanic eruption has compromised the wildlife of the ecologically-delicate Galapagos Islands, resulting in the deaths of fish and sea lions over the weekend.

On April 18, 2009, EPA will hold the 5th Annual National Sustainable Design Expo, which will display new sustainable or green technologies.

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Records test competing theories about the evolution of local species.

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A newly released study by researchers at the University of Alaska Fairbanks offers evidence that in one breed of northern seabird, the size of males’ feather crests may be more than simple ornamentation.

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During the last 540 million years, the earth's oxygen levels have fluctuated wildly. Knowing that the dinosaurs appeared around the time when oxygen levels were at their lowest at 12%, Tomasz Owerkowicz, Ruth Elsey and James Hicks wondered how these monsters coped at such low oxygen levels.

Sedimentary rocks created more than 2.4 billion years ago sometimes have an unusual sulfur isotope composition thought to be caused by the action of ultra violet light on volcanically produced sulfur dioxide in an oxygen poor atmosphere.

Anyone who studied a little genetics in high school has heard of adenine, thymine, guanine and cytosine – the A,T,G and C that make up the DNA code. But those are not the whole story.

Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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