According to a New Research, Chimps Uses 'Hi' and 'Bye' Greetings, Just Like Humans

According to a New Research, Chimps Uses 'Hi' and 'Bye' Greetings, Just Like Humans

Saying “hello” and “goodbye” is fairly common in human interactions, but such behavior has never been observed in a non-human species until now. According to new research, chimps and bonobos have similar social behaviors: the great apes begin and end grooming and play sessions with actions similar to a human "hello" and "goodbye."

The researchers were inspired to investigate joint commitment in apes after witnessing two bonobos, who had been interrupted mid-grooming, appear to use gestures to resume the activity they had previously been engaged in.

The researchers examined 1,242 ape interactions at zoos to determine whether chimps and bonobos engage in these behaviors. They discovered that these primates frequently communicate with one another — often with gestures such as gazing at and touching each other, holding hands, or butting heads — before and after encounters such as grooming or play.

The researchers discovered that the bonobos were the more polite of the two species, greeting each other more frequently than the chimps.

According to researchers, bonobos exchanged entry alerts and mutual gazes in 90% of the cases when they started a joint interaction, whereas chimps did so in 69% of the cases. During departures, bonobos outperformed chimps, displaying exit behaviors 92 percent of the time, whereas chimps confirmed it in 86 percent of interactions.

The team also looked into whether these behaviors changed when the apes interacted with their close friends. They discovered that the closer the bonobos were to each other, the shorter their entry and exit movements were. This is not dissimilar to human behavior. When you're interacting with a good friend, you're less likely to put in a lot of effort in communicating politely, according to first author Rafaela Heesen, a postdoctoral researcher at Durham University's Faculty of Psychology in the United Kingdom.

In a statement, Raphaela Heesen said, "We were able to launch rockets and land on the moon because we have the ability to share our intentions, which allows us to achieve things so much bigger than a single individual can achieve alone. This ability has been suggested to be at the heart of human nature."

There are many unknowns about the origin and evolution of joint commitment, but this study advances our understanding of this crucial human behavior. Following that, the researchers intend to look into joint commitment in other great apes like orangutans and gorillas and more distantly related species like wolves or dolphins.

"Behaviour doesn't fossilize," Rafaela Heesen said. You can't dig up bones to look at how behavior has evolved. But you can study our closest living relatives: great apes like chimpanzees and bonobos.

"Whether this type of communication is present in other species will also be interesting to study in the future."

The research was published in the journal iScience.

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