Trilobites: Chop Off This Worm’s Head and It Can Still Detect Light Planarian flatworms can react to light when they lose their heads and brains, and gradually regain their ability to distinguish different hues as they regenerate their bodies. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Freight Train Kills 4 Elephants in India, Including a CalfTESS, NASA’s Latest Planet Hunter, Is LaunchingSpaceX launch LIVE stream: Watch Falcon 9 launch NASA’s planet hunter online HERELung Cancer Patients Live Longer With Immune TherapyHow NASA’s TESS Spacecraft Will Hunt ExoplanetsGlobal warming to lead to more volcano eruptions, researchers warn