The world was once connected by land, not divided by sea
In short: During the Last Glacial Maximum, sea levels were roughly 125 meters lower than they are today. This video reconstructs a vanished world of connected continents and the humans who thrived in its extreme climates.
The retreating ice of the Ice Age created massive land bridges like Beringia, Sunda, and Sahul, while also forming the mammoth steppe. These connections allowed for migration and shaped the geography of regions now separated by oceans. The video explores how these landscapes featured vanished rivers and giant lakes that have since been submerged.
Archaeologists are working to uncover the lives of hunter-gatherers who survived these conditions using tailored clothing and managed fuel. Much of this evidence is now hidden underwater due to postglacial flooding. By analyzing coral reefs, ice cores, and sonar mapping, researchers are piecing together the scale of these lost coastal environments.
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Sources
- Summary by Intellect · source: Earth 20,000 Years Ago: Lost Continents, Ice Age Humans
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