In this September 2, 2019 photo, a silverback mountain gorilla named Segasira sits among plants in the Volcanoes National Park, Rwanda. Congo's Virunga National Park, home to about a third of the world's mountain gorillas, has barred visitors until June 1 2020, citing “advice from scientific experts indicating that primates, including mountain gorillas, are likely susceptible to complications arising from the COVID-19 virus”. (Photo by Felipe Dana/AP Photo/File)
