Ancient Aliens: Top 3 Deep Sea UFO Mysteries 🌊

Is there evidence of extraterrestrial life in our oceans? See more in this compilation from Ancient Aliens.

00:00 - Secret Underwater Alien Base Found
08:59 - Alien Life in the Ocean
14:34 - Lost Island Discovered in North Atlantic

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"Ancient Aliens" explores the controversial theory that extraterrestrials have visited Earth for millions of years.

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