0732 GMT December 05, 2019
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"It is important that you understand how the food web works when managing a fishery. It is not enough to manage how the fish and fisheries are changing. The availability and quality of food is at least as important", said Lena Bergström, researcher at the Department of Aquatic Resources at the Swedish Agricultural University.
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Scientists say they have discovered the secret behind why some people are skinny while others pile on the pounds easily.
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Skinny patients are far more likely to die after common heart treatments than those who are overweight, a major study suggested.
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