Tidal cause for Sumerian irrigation infrastructure; spread of Neolithic farmers into central Europe; Denisovan genes in Indigenous Americans; isotope analysis of Stonehenge cow tooth

New study shows why early Persian Gulf communities were forced to design large-scale infrastructure [Alternate Link]

New study traces transition from hunter-gatherers to the agricultural lifestyle [Alternate Link]

First arrivals in Americas carried a genetic relic that helped fight diseases

New analysis of Neolithic cow's tooth found at Stonehenge confirms link to Wales [Alternate Link 1] [Alternate Link 2]