closeup of critically endangered sumatran orangutan pongo abelii in gunung leuser national park in northern sumatra, indonesia.

abelii aceh and animal apes asia attraction bukit closeup conservation creatures critically east ecology endangered environment face female forest fragile gunung hiking indonesia jungle lawang leuser medan national north northern orangutan outdoors outside park pongo precious primates protection rainforest rare rehabilitation single south species stare staring sumatra sumatran tourism tourist tramping travel trekking walking wild wildlife young