Submerged land discovered: habitat for half a million people. Area the size of Paraguay is said to have had optimal conditions for human life.
Sunken land may have hosted up to 500,000 people. Ice melting around 14,500 years ago caused land masses to slowly sink. The result is remarkable: an area of 400,000 square kilometers that was once habitable now lies beneath the waters of the Indian Ocean. In addition to an inland sea, there was a freshwater lake and rivers, cliffs and ravines.