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Why do male gorillas beat their chest? this is the real reason🦍
When we want to imitate a gorilla we always resort to hitting our chest like they do, it is like the most symbolic thing we remember about gorillas. But we always associate this action with violence and that surely after hitting his chest, the gorilla will start a fight, is this really true?
Photo credits: Anthony Yin
📍Location: Toronto Zoo, Toronto, Canada
A journalistic note published in BioGuia by Alexia Barrera Hernández
Those known as "mountain gorillas" have been characterized by living in family groups that are led by silverback males, whose authority is constantly challenged by other males.
Between 2014 and 2016, primatologist Edward Wright, from the Max Plack Institute for Evolutionary Anthropology in Germany, spent more than 3,000 hours with his scientific team in the Volcanoes National Park, in Rwanda, to study the behavior of these Mountain gorillas and find out the real reason why they beat their chests.
Photo credits: Dušan veverkolog
📍Location: ZOO Troja, Prague, Czech Republic
Research work
This research team observed more than 500 beats to the chest in 25 male mountain gorillas in the wild. They used a sound system to record the hits and their frequencies.
Photo credits: Simbi Yvan
📍Location: Rwanda
The number of strokes was recorded as well as the duration of this interesting behavior. Also, the scientists investigated whether these results are related to the size of the gorillas using photographs to measure the maximum width of the gorillas' shoulders. The results were very interesting.
The results
After several days of study challenging the difficult life in the mountains, the results of the research showed that larger mountain gorillas produce sounds of lower frequencies than smaller ones. It is believed that this is due to the fact that larger gorillas have larger alveoli (they are cavities in which each of the teeth is housed) near the larynx, therefore the blow to the chest is not only a visual demonstration but also also an "honest sign of competitive ability" initiation.
As background, other studies have shown that the size of the mountain gorilla represents greater dominance and reproductive success as well, but the breast bump was a hypothesis, an idea that was suspected. Wright's team confirmed this hypothesis!
Photo credits: Mike Arney
📍Location: Unknown
"For the first time, we can be really sure that body size is conveyed through these chest strokes, which are a clear indication of body size," Wright noted.
Although we must take into account that this same study has discarded the idea that these blows are produced to incite violence or aggression. On the contrary, this behavior prevents violence among gorillas, because this act imposes authority and dominance among gorillas. Not everything is what it seems, movies can tell us one thing, but science will always be right in these cases.
What do you think about this❓
Do you know any other interesting information about gorillas❓
Let us know in the comments💬...
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I don't lose any of your reports, they are super good! I always learn something good my friend. And the structure is enviable great work!
@oscurity always trying my best! thanks my friend. You're doing a great work too!