These animals are often considered primates closest to humans with their developed intellect and their ability to use tools in various activities.
Edwin van Leuven, an expert in animal behaviour at the University of Antwerp, studied dozens of chimpanzees sheltering at the Shimfushi Zambian shelter. He closely traced the repetitive hand gestures of two different groups, BTA reports.
One of the gestures associated with mutual freeing is expressed in stretching one hand over the head and touching the other on the partner's wrist in this occupation. Or you make a handshake.
Van Leuven found that the handshake was much stronger in one group of chimpanzees, at the expense of the other. The researcher found that females were more likely to grab hands while male specimens clutched the wrist to enforce their superiority.
"The fact that these animals have developed different habits in different groups speaks of the fact that they are formed according to their social composition”, says the researcher. In his words, chimpanzees have learned handshakes as a form of ritual performing social functions in the interaction of individual individuals.
All these gestures prove the ability of chimpanzees to preserve the “stability of traditions” in the group, a process that in human societies we call cultural resilience. This behavior can not be explained by genetic factors, it is not also caused by the environment. According to Löfven, these gestures are learned over time in the social communication of these primates.
Chimpanzees adapt handshakes according to their social group
Chimpanzees adapt handshakes according to their social group, a 12-year study cited by France Press found.tags: