An article published in the journal “Nature Ecology & Evolution” reports a study of the fossils of the so-called Turkana boy, the most complete early human skeleton found so far. A team of paleoanthropologists led by Markus Bastir of the Museo Nacional de Ciencias Naturales in Madrid and Daniel García-Martínez of the Centro Nacional de Investigación sobre la Evolución Humana (CENIEH) in Burgos, Spain, created a three-dimensional reconstruction of the Turkana boy’s rib cage to compare their characteristics with those of other hominins. The result is that it was stockier than Homo sapiens, different from the idea of ​​the first runners that paleoanthropologists have of Homo erectus and Homo ergaster.