New Monkey Species Discovered in India

Join Our Community of Science Lovers!


On supporting science journalism

If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.


Scientists have discovered a previously unknown monkey species in the mountains of India. Christened the Arunachal monkey after the region in which it was found, it is the first new species of macaque identified since 1903.

Researchers from Wildlife Conservation Society (WCS) and the Nature Conservation Foundation spotted and photographed the animals, formally known as Macaca munzala ("deep-forest monkey" in the language of the local people), on a series of expeditions in 2003 and 2004. "This new species comes from a biologically rich area that is perhaps India's last unknown frontier,¿ says team member M. D. Madhusudan of the WCS. ¿The discovery of a new species of monkey is quite rare. What is also remarkable about our discovery is that few would have thought that with over a billion people and retreating wildlands, a new large mammal species would ever be found in India, of all places.¿ The creatures are relatively large, but have shorter tails than other primates of their size. In addition, living between 1,600 and 3,500 meters above sea level makes them one of the highest-altitude primates in the world.

There are 20 other species of macaque monkeys, which live in a variety of locales. The scientists are not sure how widespread the Arunachal macaque is, but plan to undertake future studies to determine its range and whether or not it warrants protected status. A paper describing the animal will appear in a forthcoming issue of the Journal of Primatology.

It’s Time to Stand Up for Science

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in that two-century history.

I’ve been a Scientific American subscriber since I was 12 years old, and it helped shape the way I look at the world. SciAm always educates and delights me, and inspires a sense of awe for our vast, beautiful universe. I hope it does that for you, too.

If you subscribe to Scientific American, you help ensure that our coverage is centered on meaningful research and discovery; that we have the resources to report on the decisions that threaten labs across the U.S.; and that we support both budding and working scientists at a time when the value of science itself too often goes unrecognized.

In return, you get essential news, captivating podcasts, brilliant infographics, can't-miss newsletters, must-watch videos, challenging games, and the science world's best writing and reporting. You can even gift someone a subscription.

There has never been a more important time for us to stand up and show why science matters. I hope you’ll support us in that mission.

Thank you,

David M. Ewalt, Editor in Chief, Scientific American

Subscribe