00:00Neanderthals built complex structures 176,500 years ago.
00:06This discovery will disturb you. Deep inside Brunichel Cave, scientists found mysterious
00:13stalagmite rings. These rings weren't natural, they were clearly built by hand. But how?
00:18This proves Neanderthals had advanced social skills, working together for big projects.
00:24For more unbelievable details on these ancient builders, check the link in bio.
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