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Maya reservoirs could inform future water management

The Classic Maya who lived in the tropical southern lowlands of Central America from around 250-900 A.D. relied on reservoirs to survive their five-month dry season and sporadic droughts.But how did they keep their water clean?The answer could hint at ways to improve water quality and availability under climate change.

Ancient Maya reservoirs and water management – Popular Archeology

Ancient Maya reservoirs and water management – Popular Archeology
popular-archaeology.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from popular-archaeology.com Daily Mail and Mail on Sunday newspapers.

Investigating intentional cranial modification: A hybridized two-dimensional/three-dimensional study of the Hirota site, Tanegashima, Japan

Intentional cranial modification has a long history, being a ubiquitous practice in many cultures around the world for millennia. The crania excavated at the Hirota site on Tanegashima Island, Kagoshima Prefecture, Japan, has been previously noted to have a marked tendency toward a short head and a flattened occipital bone, which has been suggested to be the result of artificial cranial deformation. However, whether this deformation was intentional or caused by unintentional habits remains unclear. This study aimed to investigate the characteristics of the cranial shape of the Hirota site to clarify whether the crania were intentionally modified. In the examination of Hirota crania, Kyushu Island Jomon and Doigahama Yayoi crania were added as comparative data and contrasted with three-dimensional (3D) surface scan imaging and two-dimensional outline-based geometric morphometric analysis, combined with objective assessments of potential cranial modification. The results showcased Hirota

Old Knowledge

Old Knowledge
nationalaffairs.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from nationalaffairs.com Daily Mail and Mail on Sunday newspapers.

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