The world’s smallest population of mountain gorillas—a subspecies of the eastern gorilla—is split in two and scientists have debated whether they may be two separate subspecies.
A bit more than half live in the Virunga Mountains, a range of extinct volcanoes that border the Democratic Republic of Congo, Rwanda and Uganda.
The remainder can be found in the Bwindi Impenetrable National Park in Uganda.
Since the discovery of the mountain gorilla subspecies in 1902, its population has endured years of war,
hunting, habitat destruction and disease—threats so severe that it was once thought the species might be extinct by the end of the twentieth century.