According to a new research, Monkeys' social circles generally becomes smaller as they age, much like that of humans.
The researchers believe that the finding might help shed some light on human behaviour. The team studied the social behaviour in more than 100 Barbary macaque monkeys housed in an enclosed 50-acre park in southern France. The monkeys were in the age group of 4 to 29. The age of 29 is equal to about 105 in human years, according to researchers.