Social organization encompasses sociological relations that are construed to be the designed pattern of relationship that exist amongst and between the groups and the individuals making the group. There are several aspects that are looked for in defining social organization, they include; division of labor, size, spatiotemporal cohesion, sexual composition, leadership, and the existing structure (Wich, 2009). With this background information, this paper endeavors to examine the social organization of the Orangutans, Gorillas, and Common Chimpanzees with special reference to the similarities that exist in their organizations as well as the contrasts. Similarities in social organization of Orangutans, Gorillas, and Common Chimpanzees Groups and Communities Apart from orangutan that has fragmented and leads a lonely life, the other two, the Chimpanzees and the Gorilla have a well-structured groups and communities that are headed by a leaders. For instance, the Chimpanzees do have a group membership that consists of about 10 chimps and a community at large that consist of about 100 chimps.