TUCSON, ARIZONA—The Washington Post reports that James Watson and Danielle Phelps of the University of Arizona examined unusual burials dating to the beginning of the agricultural period in the Sonoran Desert, around 2100 B.C. When a body was buried on its side, with its arms crossed and knees bent, the person is thought to have been buried with the respect of the community. But sometimes, bodies were tumbled headfirst into graves, with bones broken and limbs splayed. Watson and Phelps suggest that as people moved into settled communities and attempted to establish control over farming territories, tensions between different groups may have turned into feuds lasting generations. These tensions may be reflected in the violent deaths and disrespectful burials. Watson speculates that desecrating the corpse of an enemy may have been a way to gain prestige, but it also could have increased the risk of retaliation. For more, go to “Early Parrots in the Southwest.”