00:00Imagine scientists scooping mud from the sea floor near Indonesia and accidentally finding
00:04evidence of a lost world.
00:06More than 6,000 fossil fragments were recovered, including remains linked to Homo erectus from
00:12around 140,000 years ago.
00:14But here's the incredible part.
00:16During the Ice Age, Java wasn't really an isolated island.
00:20Sea levels were hundreds of feet lower, connecting Java, Sumatra, Borneo and Southeast Asia into
00:27a huge landmass known as Sunderland.
00:30Early humans could walk across landscapes that are completely underwater today.
00:35They followed rivers, hunted animals and processed food using tools.
00:40Fossils even show cut marks and cracked bones, evidence that these ancient humans were far
00:46more skilled than we once imagined.
00:48Then the Ice Age ended, glaciers melted, sea levels rose and enormous parts of Sunderland
00:54and slowly disappeared beneath the ocean.
00:57Entire landscapes once inhabited by humans were lost.
01:01And today, archaeologists are only beginning to recover pieces of that forgotten world from
01:07the seabed.
01:07Which raises an incredible question.
01:10How much of human history is still buried beneath our oceans?
