Fat, thin caterpillars are studied

A U.S.-led international team of scientists says there's no obesity epidemic among insects and the researchers believe they now know why.

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<p><a href="http://www.physorg.com/news78081432.html">Fat, thin caterpillars are studied</a></p> <p>A U.S.-led international team of scientists says there's no obesity epidemic among insects and the researchers believe they now know why. </p>