Quilotoa@lemmy.ca to Mildly Interesting@lemmy.world · 6 个月前7,000-year-old underwater wall raises questions about ancient engineering — and lost-city legendsbigthink.comexternal-linkmessage-square3linkfedilinkarrow-up147arrow-down11
arrow-up146arrow-down1external-link7,000-year-old underwater wall raises questions about ancient engineering — and lost-city legendsbigthink.comQuilotoa@lemmy.ca to Mildly Interesting@lemmy.world · 6 个月前message-square3linkfedilink
Part of some kind of animal trap perhaps?