Wild American chestnut trees, deemed “functionally extinct” decades ago, may already be quietly mounting an unexpected comeback in the northern forests of the US. Thousands of naturally thriving, wild trees in Maine contradict decades of assumptions about the species’ extinction—and how genetic engineering is the only solution. Ever since the accidental importation of an Asian […] The post Once Wiped Out by Blight, Thousands of American Chestnut Trees are Thriving on Biologist’s Land in Maine appeared first on Good News Network.