A chimpanzee in this study never once landed heel-first in 43 strides. New research shows why humans always do, and the physical cost hidden in that single evolutionary difference. #HumanEvolution #Paleoanthropology #Bipedalism www.anthropology.net/p/the-evolut...

The authors report a limited role of gradual directional selection and underscore the importance of stabilizing selection and constraints in our lineage’s evolution.
#humanevolution #hominin #paleoanthropology
www.nature.com/articles/s41...
@katharv.bsky.social
@harvatilab.bsky.social