Early drainage system in China; Iceman Ötzi had dark skin; Medieval girl in England buried face down; Nautilus shell beads in Indonesia


China's ancient water pipe networks show no evidence of centralized state authority

Genome study reveals that Iceman Ötzi had dark skin and male pattern baldness

Medieval girl buried face down, ankles possibly tied, to prevent return from the grave

Sea sequin bling links Indonesian islands' ancient communities