“In 2013, it was estimated that there were more than 100 uncontacted tribes around the world, mostly in the densely forested areas of South America and New Guinea. The Sentinelese (Andaman Islands, India) are the most secluded tribe in the world.[4] Knowledge of the existence of these groups comes mostly from infrequent and sometimes violent encounters with neighboring tribes, and from aerial footage.” https://en.wikipedia.org/wiki/Uncontacted_peoples In November 2018, there was an incident in which a missionary landed on the Sentinelese (Andaman) islands in India. The missionary was immediately killed when he attempted to land. Indian law forbids any attempt at contact with this group of people and even maintains an ocean “no-go” zone around the island.
Read this short article:
https://www.theguardian.com/world/2018/nov/28/india-body-john-allen-chau-missionary-killed-by-sentinelese-tribe
Discuss the genetic advantages to the isolated groups of uncontacted people for NOT having contact with the outside world. Do you see any disadvantages for these people to remaining isolated?