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More than 35,000 bone and shell fragments from a Maya settlement in Ceibal, Guatemala tell the tale of animal use through the ups and downs of a great civilization according to a new report in the journal PLOS One by Ashley Sharpe, staff archaeologist at the Smithsonian Tropical Research Institute, with colleagues from the University of Arizona, the University of Ibaraki, Japan and Guatemala’s Institute of Anthropology and History and Universidad de San Carlos.

Did a powerful queen of Cobá, one of the greatest cities of the ancient Maya world, build the longest Maya road to invade a smaller, isolated neighbor and gain a foothold against the emerging Chichén Itzá empire? The question has long intrigued Traci Ardren, archaeologist and University of Miami professor of anthropology. Now, she and fellow scholars may be a step closer to an answer, after conducting the first lidar study of the 100-kilometer stone highway that connected the ancient cities of Cobá and Yaxuná on the Yucatan Peninsula 13 centuries ago.

Fossils and stone tools are key findings unearthed at any archaeological site focused on human evolution studies, however, behavior does not fossilize, and it is not possible to observe hominins using their tools. Thus, primatology plays an important role, as the study of modern primates can help us to understand the behavior of the earliest human populations. In this context, an international research team is focused on the analysis of capuchin monkeys from Serra da Capivara, in Brazil. The main goal is to investigate the use-wear marks developed on the stone tools used by these monkeys and build a theoretical model that could help to understand the emergence of hominin behavior.

When a tiny fragment of human bone shows up in an excavation, Nicole Smith-Guzman can tell you where exactly it came from in the body. Her interest in bones began during her childhood and adolescence, after fracturing a few of them, including her pelvis. Later, as an anthropology major in college, a human osteology class hooked her for good, connecting her intellectual interests with one of her favorite hobbies: jigsaw puzzles.