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Monday, October 23, 2017

These shrews have heads that shrink with the season

http://ift.tt/eA8V8J If any part of the body would seem ill equipped to shrink, it would probably be the head and skull. And, yet, researchers have found that the skulls of red-toothed shrews do shrink in anticipation of winter, by up to 20 percent. As spring approaches, their heads grow again to approach their previous size.

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