Tree Ring Record Catalogs Europe's Megadroughts (IMAGE)

American Association for the Advancement of Science (AAAS)

Tree Ring Record Catalogs Europe's Megadroughts

Caption

The grasping behavior of the "artificial/robotic hand" driven by light irradiation. This material relates to a paper that appeared in the Nov. 6, 2015, issue of Science, published by AAAS. The paper, by E.R. Cook at Columbia University in New York, N.Y., and colleagues was titled, "Old World megadroughts and pluvials during the Common Era."

Credit

[Credit: Cook <i>et al.</i> Sci. Adv. 2015;1:e1500561]

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