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:8,000-year-old HUMAN SKULLS found impaled on poles underwater, leaving experts baffledYellowstone earthquake: Worried scientists log QUAKE SWARM of over 200 rumbles within DAYSOldest supernova EVER DETECTED found by UK scientists in GROUNDBREAKING discovery‘Alien armada over Jupiter’ First contact with ALIEN LIFE will be welcomed by humansTsunami warning: Ocean slime can cause 65ft MEGA-TSUNAMIS'ROBOT bees could be used to KILL' Expert warns of terrifying Black Mirror scenario
