A video has been shared on Instagram recently, showing two grey monkeys going through their grooming routine.
Surrounded by a group of onlookers, the monkeys look very serious as they are busy with their ritual.
The one that is being groomed lies in a very peculiar position so that the 'groomer' monkey has access to its private parts.
The scene cannot but evoke a smile and even laughter but for these monkeys, it is no laughing matter.