Wild panda numbers have slowly rebounded as China cracked down on the skin trade and gradually expanded its protected forest areas.
International groups and the Chinese government have worked to save wild pandas and breed them at enormous cost, attracting criticism that money could be better spent saving other animals facing extinction.
But the WWF, whose logo has been a panda since 1961, celebrated the panda's re-classification, saying it proved that aggressive investment does pay off "when science, political will and engagement of local communities come together".