FILE - A rainbow forms in the mist at the top of the waterfalls in Murchison Falls National Park, northwest Uganda, on Feb. 22, 2020. Africa’s national parks, home to thousands of wildlife species are increasingly threatened by from below-average rainfall and new infrastructure projects, stressing habitats and the species that rely on them. Climate change and large-scale developments, including oil drilling and livestock grazing, are hampering conservation efforts in protected areas, several environmental experts say. (AP Photo, File)