Trilobites: As Winter Sets In, Tiny Shrews Shrink Their Skulls and Brains Researchers who documented a head-size reduction of as much as 20 percent say it may be a survival strategy to reduce energy use in the colder months. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Trilobites: Farmland Birds in France Are in Steep DeclineAlien discovery: Subglacial Arctic lake could hold key to life on Europa and TitanAn Eye in the Sky Could Detect Planet-Warming Plumes on the GroundBaby in China Is Born to Surrogate 4 Years After His Parents’ DeathsRuth Nussenzweig, Who Pursued Malaria Vaccine, Dies at 89Baby born FOUR YEARS after his parents died in a car crash
