Gibbons are small apes of the species Hylobates[?]. They are also called lesser apes, and differ from great apes in being smaller and generally monogamous and in not making nests. They are classified as follows.
... living alone who is 65 years of age or older. The average household size is 3.42 and the average family size is 3.67.
In the town the population is spread out with ...