AUTHOR=Elgar Mark A. , Riehl Christina TITLE=Editorial: Mechanisms of Communication and Recognition in Social Evolution JOURNAL=Frontiers in Ecology and Evolution VOLUME=8 YEAR=2021 URL=https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2020.625831 DOI=10.3389/fevo.2020.625831 ISSN=2296-701X