AUTHOR=Verga Laura , Ravignani Andrea TITLE=Strange Seal Sounds: Claps, Slaps, and Multimodal Pinniped Rhythms JOURNAL=Frontiers in Ecology and Evolution VOLUME=9 YEAR=2021 URL=https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2021.644497 DOI=10.3389/fevo.2021.644497 ISSN=2296-701X