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Humans & Society

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spoon full of sugar

NOT SO SWEET  An influential scientific review published in the 1960s, which downplayed the role of sugar in heart disease, was written by researchers who were paid by the sugar industry.

images of plastic, nuclear tests, chickens

END OF AN EPOCH  Plastics, radioactive fallout and the prevalence of domestic animals such as chickens — signs of which show up in the sedimentary record — have made the last few decades distinct in the planet’s stratigraphic record, a group of researchers say.

human embryo

EDITS UNDER WAY  Researchers in Sweden have begun editing genes in viable early human embryos (four-cell stage, shown). Others are probably doing the experiments behind closed doors, scientists say.

Humans & Society

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