News tagged with population

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Genetic analysis of Ice Age Europeans

Analyses of ancient DNA from prehistoric humans paint a picture of dramatic population change in Europe from 45,000 to 7,000 years ago, according to a new study led by Howard Hughes Medical Institute Investigator David Reich ...

dateMay 02, 2016 in Archaeology & Fossils
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Million people urge Bayer to stop bee-killer pesticides

German agrochemicals and pharmaceuticals giant Bayer was presented Friday with a petition of more than one million signatures urging it to stop manufacturing pesticides that are blamed for the decline in the world's bee populations.

dateApr 29, 2016 in Ecology
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Beyond milkweed: Monarchs face habitat, nectar threats

In the face of scientific dogma that faults the population decline of monarch butterflies on a lack of milkweed, herbicides and genetically modified crops, a new Cornell University study casts wider blame: sparse autumnal ...

dateApr 22, 2016 in Ecology
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