As their name implies, mountain gorillas live in forests high in the mountains, at elevations of 8,000 to 13,000 feet. They have thicker fur, and more of it, compared to other great apes. The fur helps them to survive in a habitat where temperatures often drop below freezing. But as humans have moved more and more into the gorillas’ territory, the gorillas have been pushed farther up into the mountains for longer periods, forcing them to endure dangerous and sometimes deadly conditions.

What might have been a bleak outlook for the subspecies just a couple of decades ago has brightened in recent years due to conservation efforts. Despite ongoing civil conflict, poaching and an encroaching human population, both populations of mountain gorillas have increased in numbers