While mountain gorillas in East Africa have been studied for more than 50 years, relatively little is known about the behavior and social lives of their counterparts in central Africa. “Close encounters between gorilla groups inform their decision making.” Broader range of interaction “Females born within the group will eventually leave to join a different group to avoid inbreeding and should be selective about which male’s group they choose,” she said. “They provide a way to gain information about the power of dominant males in neighboring groups and their support systems and also about potential reproductive opportunities. ![]() “Interactions with other groups are critical for wild gorillas,” said Kristena Cooksey, a graduate student of biological anthropology in Arts & Sciences and first author of the new study. The study is published in the International Journal of Primatology. While members of different groups were observed engaging in direct competition, gorillas from different groups also engaged in friendly interactions such as play. ![]() Louis shows that encounters between gorilla groups were much more frequent, and that they had more varied social exchanges than expected.įurther, these interactions seemed to be driven more by defense of mates than food resources. ![]() New research led by anthropologists at Washington University in St. The social life of gorillas is much more dynamic than previously thought, particularly with regard to interactions between neighboring groups.
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