Comparative map showing the distribution of Andamanese tribes in the Andaman Islands – early 1800s versus in 2004. Notably: (a) Rapid depopulation of the original southeastern Jarawa homeland in the 1789–1793 period (b) Onge (in blue) and Great Andamanese shrinkage to isolated settlements (c) Complete Jangil extinction by 1931 (d) Jarawa move to occupy depopulated former west coast homeland of the Great Andamanese, and (e) Only the Sentinelese zone is somewhat intact