A new study led by the Wildlife Conservation Society (WCS) has updated the global population estimate for the Critically Endangered Grauer's gorillas (Gorilla beringei graueri)—the world's largest gorilla subspecies—to 6,800 individuals from a previous global estimate of 3,800 individuals. This revised estimate comes from recent field surveys conducted in one of this animal's largest remaining strongholds, in areas that were previously inaccessible for surveys. However, these gorillas continue to be heavily impacted by ongoing insecurity, and by human incursion into their remaining habitat in eastern Democratic Republic of Congo.