The bigger the male gorilla, the better he hits the slotxo chest, signaling friends and foes how powerful he is, scientists confirm.A new study shows that the impressive drum sound is a measure of size and strength.Women adapt to the pattern of the hands on the chest when sizing their partner, while men are reminded to choose a fight.Researchers say this is a powerful means of communication in dense tropical forests where gorillas reside.Chest dancing, performed by adult males, also known as silverbacks for their gray hair, can be heard over a kilometer.It has been a long time since we thought it was a demonstration of how powerful they are and they do this for males and females, ”said Edward Wright, of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany.
For men to say 'Look, I'm big and strong, don't mess with me,' and for women. 'Look at me big and strong, maybe you can choose me as a friend.'“For the first time, we can be sure that, yes, body size is expressed in these chest beats, and chest dancing is a true sign of body size.In gorilla societies, groups of them usually consist of one male and a number of females. Women may move between groups, with men competing for attention.As far as male gorillas are concerned, size matters. Body size predicts rank, battle ability and reproductive success.Silverbacks use chest dancing to warn male competitors and woo women by showing their size and strength.Male gorillas learned chest dancing at a young age, practicing their skills as they grew up.
Research published in the journal Scientific Reports shows that bigger men have deeper voices. (Lower frequency) when hitting the chestThis is a faithful sign of body size, namely, male gorillas cannot be faked.It is thought that sound is related to the size of the air sacs near the larynx found in gorillas and other great apes (but not humans), which play a role in emitting roar, roaring and calling gorillas that do the same as the chest. That is not the sound of singing and dancing.Moreover, the difference was seen in the timing and number of chest beats performed by different gorillas, indicating that an individual could be identified from the chest beats alone.The researchers concluded by measuring the body size of the male gorillas from the photograph based on the distance between the gorillas' shoulder blades - the width of the back.
They used audio recordings to measure the timing, number and frequency of the chest beats taking place in the wild by Silverback Mountain Gorillas examined by the Dian Fossey Gorilla Fund in Volcanoes National Park, Rwanda.About 600 mountain gorillas were left in the wild in 2008, but the number has now grown to more than 1,000 after intense conservation efforts. This includes anti-poaching patrols and vets trained to look after wild gorillas.Gorillas are restricted to protected areas in the Democratic Republic of Congo, Rwanda and Uganda. Threats remain, including poaching, civil unrest and human transmitted diseases.But while the number of mountain gorillas is increasing, But the big monkey is still endangered.
