Posted on February 11, 2015August 13, 2025 by Justin DurandI wonder if this has anything to do with the persistence of social class among humans. I wonder if this has anything to do with the persistence of social class among humans. http://phys.org/news/2015-01-chimps-higher-ranking-moms.html//cdn.embedly.com/widgets/platform.js Share this: Print (Opens in new window) Print Email a link to a friend (Opens in new window) Email Like this:Like Loading...