It is the terrifying moment when a huge gorilla is accused of chest-banging the tourists and forcing them to flee.
The video shows the 30th animal emerging from the forest on all four sides before getting back on its feet and starting to move towards the tourists.
As the creature beats its chest, terrified tourists act swiftly to escape, leaving the gorillas in the woods on their own.
It’s unclear where the video was shot or exactly which of the four types of gorillas are primates.
But it appears that the primate is a male mountain gorilla, also known as a silverback because of the distinct markings on its back.
According to the WWF, about half of mountain gorillas live in the Virunga Mountains, a chain of extinct volcanoes that border the Democratic Republic of Congo, Rwanda and Uganda in Africa.
But despite their size and fearsome appearance, they are “gentle giants” who display “many human behaviors and emotions, such as laughter and sadness,” says the animal protection charity.
Earlier this month, a heartbreaking photo showed a gorilla – who became an online sensation thanks to a viral selfie – died in the arms of the ranger who saved him.
The thumping of its chest by the male gorilla, as shown in the video, has long been a source of speculation by scientists.
According to recent research the mountain gorilla rises up and pounds its chest to signal for a mate or to intimidate an enemy.
The details of his body could also be revealed by the drumming that echoed through the woods.
“This is an extremely impressive demonstration,” said the research leader. edward wright from the Max Planck Institute for Evolutionary Anthropology in Germany told National Geographic.
“It can be a little scary. You don’t want to get in the way.”
The study notes that the mountain gorilla’s chest thump is unusual, unlike the squeak of a frog or the growl of a lion.
It is not a tone, but a form of physical communication that can be seen and heard.
Scientists believe that chest thumping may allow gorillas to send a signal that lets potential mates or rivals judge their size without even looking at their size.
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