Trilobites: Living Another Day, Thanks to Grandparents Who Couldn’t Sleep Age-related changes in sleep patterns may have helped early humans survive by ensuring at least one person was always alert to nighttime threats. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Science Does Not Support Claims That Contraceptives Are ‘Abortion-Inducing’Global Health: Vaccines Against H.I.V., Malaria and Tuberculosis Unlikely, Study SaysTrilobites: New Antarctica Map Is Like ‘Putting on Glasses for the First Time and Seeing 20/20’Trilobites: Hundreds of Seals Are Dying on the New England CoastQ&A: Flying Toward the LightRobots could become RACIST or SEXIST says report - ‘Prejudice is hard to reverse’
