Ranger Mathieu Shamavu was working at Virunga National Park in the Democratic Republic of the Congo, when two gorillas made a decision to strike a pose.
Fans of a photo of a ranger posing for a selfie with two gorillas have gone bananas - sending the post viral online.
They also told readers not to be shocked by the gorillas' poses.
One photo shows the gorillas standing upright behind the men, while another titled "family time" shows one of the rangers, Patrick Sadiki with the primates, Ndakasi and Matabishi cuddling up to him.
The park, formerly named Albert National Park, was created by King Albert I of Belgium primarily to protect the mountain gorillas living in the forests of the Virunga Mountains controlled by the Belgian Congo.
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The Facebook post also added a cautionary plea for visitors to never approach a gorilla in the wild.
The Virunga National Park, which is Africa's oldest park and covers 3,000 square miles was established in 1925 and became a UNESCO-designated World Heritage Site in 1979.
Two orphaned mountain gorillas struck a pose recently that looks like it could have been a scene from any backyard barbecue or house party.
Earlier this month, a post on the Facebook Page of the Virunga National Park said that 2 rangers passed away from the "force of nature".
Since then, he said on the news program, the apes have been raised by the rangers, "so they are considering that those rangers are their parents".
Proud to stand next to the survivors, in one selfie, a young man contains a grin, as he stands next to a gorilla on its legs, appearing very much like a human. The caretakers at Senkwekwe take great care to not put the health of the gorillas in danger.