A social animal is a loosely defined term for an organism that is highly interactive with other members of its species to the point of having a recognizable and distinct society.
Gorillas and other higher primates are noted as having similarly complex social structures.
All animals are social to some extent—sexual reproduction requires animals to come in contact together in order to mate, and in animals showing any degree of parental care there is a minimal social unit of one or more parents and their offspring. The term "social animal" is usually only applied when there is a level of social organization that goes beyond this, with permanent groups of adults living together, and relationships between individuals that endure from one encounter to another.
What is the typical size of the group? What factors limit group size? What factors lead to groups merging or splitting?
Does the species show territoriality? If so, to what extent? If territories are maintained, what is their purpose? Are they held by an individual or a group?
Are there permanent social dominance relationships within the group? Is there any pattern within them?
