A park ranger in Congo has described how he captured a selfie with two gorillas that went viral.
Mathieu Shamavu, a ranger at Virunga National Park in eastern Congo, said he was checking his mobile phone when he noticed two female orphaned gorillas, Ndakazi and Ndeze, mimicking his movements, so he took a picture with them.
The gorillas look as if they're posing for the camera and when Shamavu posted the picture on social media on Saturday it quickly clocked up thousands of likes and comments.
According to rangers at the sanctuary, Ndakazi and Ndeze were orphaned 12 years ago when their families were killed by poachers.
He said the caretakers at Senkwekwe Mountain Gorilla Orphanage Center try to give the animals as much access as possible to their natural environment, but they inevitably exhibit "almost the same behaviour as humans."
Senkwekwe is named after one of the wild silverback gorillas that was killed in Virunga in 2007.
The orphans need constant care, so the rangers live nearby and spend their days with them - feeding them, playing with them, keeping them company.
Virunga's management has had to take extraordinary measures to keep its visitors safe from the on-and-off fighting in the region - protecting them with a highly trained guard of elite rangers and sniffer dogs, and working closely with communities surrounding the park.
After a park ranger was killed by gunmen and three foreign tourists were briefly held captive, the park closed until it could secure the safety of visitors. It reopened in mid-February this year.
But all this costs money, and the state park says it wouldn't be able to survive without private donations from visitors.
Virunga's management hopes the viral gorilla selfie will help boost the park's profile, and encourage more people to contribute to the vital work of conserving the mountain gorillas and their unique natural habitat.