On 29 March 1970, a research party of Indian anthropologists, which included T. N. Pandit,[9] found themselves cornered on the reef flats between North Sentinel and Constance Island. An eyewitness recorded the following from his vantage point on a boat lying off the beach:
Quite a few discarded their weapons and gestured to us to throw the fish. The women came out of the shade to watch our antics... A few men came and picked up the fish. They appeared to be gratified, but there did not seem to be much softening to their hostile attitude... They all began shouting some incomprehensible words. We shouted back and gestured to indicate that we wanted to be friends. The tension did not ease. At this moment, a strange thing happened — a woman paired off with a warrior and sat on the sand in a passionate embrace. This act was being repeated by other women, each claiming a warrior for herself, a sort of community mating, as it were. Thus did the militant group diminish. This continued for quite some time and when the tempo of this frenzied dance of desire abated, the couples retired into the shade of the jungle. However, some warriors were still on guard. We got close to the shore and threw some more fish which were immediately retrieved by a few youngsters. It was well past noon and we headed back to the ship...[10]

In 2006, Sentinelese archers killed two fishermen who were fishing illegally within range of the island. The archers later drove off, with a hail of arrows, the helicopter that was sent to retrieve the bodies.[12]