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Tag Archives: study

Humans still evolving, large-scale study of genetic data shows

In a study analyzing the genomes of 210,000 people in the United States and Britain, researchers at Columbia University find that the genetic variants linked to Alzheimer’s disease and heavy smoking are less frequent in people with longer lifespans, suggesting that natural selection is weeding out these unfavorable variants in ...

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Sense of smell is key factor in bird navigation, new study shows

[unable to retrieve full-text content] How do birds navigate over long distances? This complex question has been the subject of debate and controversy among scientists for decades, with Earth’s magnetic field and the bird’s own sense of smell among the factors said to play a part. Now, researchers from the ...

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Obesity is top cause of preventable life-years lost, study shows

A team of researchers from Cleveland Clinic and New York University School of Medicine have found that obesity resulted in as much as 47 percent more life-years lost than tobacco, and tobacco caused similar life-years lost as high blood pressure. Preliminary work presented by Cleveland Clinic at the 2017 Society ...

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Amazon River no younger than 9 million years, new study shows

Researchers from the University of Amsterdam (UvA) and the University of Brasilia (Brazil) have determined the age of the formation of the Amazon River at 9.4 to 9 million years ago (Ma) with data that convincingly refutes substantial younger estimates. Their results are published as early view in the journal ...

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The English language organized itself, study reveals

A Stony Brook University-led study of the history and spelling of English suffixes demonstrates that the spelling of English words is more orderly and self-organized that linguistics have previously thought. The finding, details of which are published in the journal Language, is an indication that the self-organization of English occurred ...

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