New Study Provides Insights into Genetic History of European Beaver

European beaver (Castor fiber) has been strongly affected by expanding human populations for many thousands of years, says a team of genetic scientists led by Prof Michi Hofreiter from the University of York, UK, and the University of Potsdam, Germany. Beavers have long been an important resource for human populations across the northern continents. Their […]

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One quarter of sharks and rays threatened with extinction

One quarter of all shark and ray species are threatened with extinction, according to a new study published in the open-access journal eLife. The paper analyzed the threat and conservation status of 1,041 species of chondrichthyans—the class of fish whose skeletons are made of cartilage instead of bone which includes sharks, rays, skates and chimaeras—and […]

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