The U.S. is officially saying goodbye to 21 species that have been feared gone for years. These animals, which include many birds and marine mammals, have been delisted from the Endangered Species Act because they are now declared extinct, the U.S. Fish and Wildlife Service said this week.
New animals and plants are being lost to extinction every year—more than 160 species disappeared just in the past decade.
More than a third of animal and plant species in the U.S. could go extinct while more than 40% of ecosystems are at risk of collapse, a new report from a conservation group has found.
