70-200mm Africa BINP Black Fur Bwindi Bwindi Impenetrable Forest Bwindi Impenetrable National Park Critically Endangered East Endangered Endangered animals Footsteps through Africa Forest Gorilla Gorilla beringei Gorilla beringei beringei Gorillas Green Huge Animal Huge Mammal Joe Cooper Jungle Largest Primate Mammal Mountain Mountain Gorilla National Geographic Nikon Nikon D850 Primate Russell Maclaughlin Shannon Wild Silverback Tamron 70-200mm Uganda ape arboreal bamboo forest behind the scenes beringei brown eyes cinematographer documentary ecotourism endangered mammals endangered species family family structure film filming filming gorillas filmmaker furry gentle animals habitat loss habituated habituation herbivore knuckle-walking monkey o'conner tripod o'connor orange eyes people quadrupedal ranger red camera red digital cinema shy animals social creature subspecies of eastern gorilla terrestrial threatened threatened by disease threatened by habitat loss threatened by human conflict threatened by poaching threatened by war tourist tourists trek trekking walk on knuckles ziess ziess lens