Research shows that chest beating may actually *prevent* violence between the massive animals WorldGorillaDay
Although previous studies showed that a gorilla’s body size is linked to dominance and reproductive success, the idea that chest-beating also communicates some of that information was speculative, according to the study,A dominant silverback named MSK chest beats in unison with one of his subordinate males, called KOM., a primatologist and director of the Primate Behavioral Ecology Lab at the University of Georgia, who is unaffiliated with the research. “I was happy to finally see those results.
Silverbacks beat their chests most often when females under their protection are entering estrus, the time they’re most ready to mate. But it’s not like males are banging on the drum all day, as they’re often portrayed doing in movies. Wright says there doesn’t seem to be a relationship between how big or dominant a male is and how many times it strikes its chest, or how long its display lasts. But a sequence of chest beats may potentially communicate an animal’s identity, or “individual signature,” to other animals, he says.Though gorillas are equipped with gigantic muscles and long canine teeth, the animals come to blows only rarely.
To smaller males, the sound of a silverback’s chest-beat may discourage them from approaching. Similarly, a silverback may hear the beats made by a smaller male nearby and decide that he’s too puny to bother with.
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