The social media had a self-image (Sylvie) of two mountain gorillas with their guard in the Democratic Republic of the Congo.

The photograph shows the orphaned sisters Nadakazi and Nadezi standing in front of the camera in the Virunga National Park. It was posted on my park account in Facebook and Entgram a few days ago.

"He was walking with them when he had a chance to take the picture," said guard Mateo Chamavo, who works at a mountain gorilla care center inside the park.

I stood up and then took my phone because I did not want to miss this extraordinary shot, "he said in an interview.

"When they saw me, I took out my phone and left what you were doing and monitored the camera and watched."

Nadakazi and Nadezi live in the center after being rescued in 2007 when they were two babies.

The park, located amid volcanic mountains in the central African continent, accounts for more than half of the total number of mountain gorillas, a strain threatened by illegal fishing and armed groups.