If you observe monkeys, or read accounts by those who do, you’ll find that most of the social life of monkeys centres around grooming. It seems to be as important to monkeys as chatting is to us. I watched the two langurs you can see in the featured photo. The smaller one was initially sitting by itself, when the larger one sauntered by. The smaller was startled, and was ready to run in fright, when the bigger one reached out, pulled it down and began to groom it.
These gray langurs, sometimes called hanuman langurs, have been studied extensively. Much is known of their genetics and social structure. Still, interesting new material comes to light from amateur observation of these herbivorous monkeys. Many interesting new observations are of deception. I wasn’t lucky enough to see anything as interesting as this.
If you spend even a little time in an Indian forest you cannot fail to see an association of Cheetal and langurs. Of course, if amateurs and tourists can spot this, professionals must be writing papers about it. The bottom line seems to be that Cheetal gain from staying around langurs.
We stopped to watch the deer, but my attention turned to the monkeys. After the first incident, which I described above, I saw many more pairs grooming each other. Another encounter was also startling. A smaller monkey ran towards a larger one and hugged it (as you see in the photo). The larger one then started grooming the smaller one. What was it? Mother and older child?
Monkey behaviour is complex enough to be endlessly fascinating.