alanw
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What a submerged ancient bridge discovered in a Spanish cave reveals about early human settlement
A new study led by the University of South Florida has shed light on the human colonization of the western Mediterranean, revealing that humans settled there much earlier than previously believed. This research, detailed in a recent issue of the journal, Communications Earth & Environment...
Genovesa Cave, located in the Spanish island of Mallorca
the bridge was constructed nearly 6,000 years ago, more than two-thousand years older than the previous estimation
Article in Nature (the link to DOI in the phys.org article doesn't work)