Chimpanzee
The chimpanzee (Pan troglodytes) is one of the two species in the genus Pan, the other being the bonobo (Pan paniscus). Chimpanzees are the closest living relatives of humans, sharing approximately 98.7% of their DNA, and are a foundational model organism for the study of primate cognition, social behavior, and the evolutionary origins of human language and culture.
Social Structure and Politics
Chimpanzee societies are organized into fission-fusion communities of 20 to 150 individuals. Unlike many primate species with stable dominance hierarchies, chimpanzee power is contested, negotiated, and frequently overturned. High-ranking males maintain their positions through a combination of physical intimidation, coalition formation, and what primatologists have termed political