Q&A: Evergreen or Not? The needles on a conifer normally turn yellow or brown at predictable times of aging, with the others staying green. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Pigs given ROBOTIC hearts in medical breakthrough that could save MILLIONS of livesIs asteroid due to crash into Earth sparking mass tsunamis NEXT WEEK?The Nation’s Zoos Know You Need to See Cute Animals Right NowAdvances Made Toward Growing Organs in ‘Chimera’ AnimalsHydrogen Squeezed Into a Metal, Possibly Solid, Harvard Physicists SayScientists use sharks to BITE BACK at Alzheimer’s and Parkinson’s disease