The study by Marie Dacke is reported in the journal Current Biology.

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The new research is reported in the journal Current Biology.

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But don't write off those grunts and hoots just yet, at least according to a new study that appears in the Oct. 15 issue of the journal Current Biology.

FORBES

In a new study published today in the journal Current Biology, Roenneberg and his colleagues surveyed the sleep habits of more than 65, 000 adults and found that people with different weekday and weekend sleep schedules had triple the odds of being overweight.

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The researchers published their work in the current issue of the Journal of Evolutionary Biology.

ECONOMIST: Evolutionary biology