"The wall measures an average of 65 feet wide and just 6.5 feet high, and is covered by 30 feet of water. Giant granite standing stones dot the wall at regular intervals, protruding above it along two parallel lines, according to the BBC. Scientists suggest the standing stones may have once held a net of sticks and branches to catch fish."
"Scientists believe the wall dates back to the Stone Age, roughly 5,000 BC, and may have been part of a fish-trap or a dyke to protect against rising sea levels a striking parallel to the threats of global warming we face today. However, while human activities have become the largest contributor to global warming in the 21st century, rising sea levels during the early Holocene are largely attributed to the end of the last ice age, causing huge ice sheets to melt."
An undersea wall off the coast of Brittany measures almost 400 feet long, averages 65 feet wide and 6.5 feet high, and lies under 30 feet of water. Giant granite standing stones punctuate the structure at regular intervals and align along two parallel lines. The structure dates to roughly 5,000 BC and may have functioned as a fish-trap or as a dyke protecting communities from rising sea levels. Rising sea levels in the early Holocene followed the end of the last ice age and forced coastal resettlement. The site was discovered and extensively mapped in 2022.
Read at futurism.com
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