Media type: E-Article Title: Intra-individual variation in the songs of humpback whales suggests they are sonically searching for conspecifics Contributor: Mercado, Eduardo imprint: Springer Science and Business Media LLC, 2022 Published in: Learning & Behavior Language: English DOI: 10.3758/s13420-021-00495-0 ISSN: 1543-4508; 1543-4494 Keywords: Behavioral Neuroscience ; Cognitive Neuroscience ; Experimental and Cognitive Psychology Origination: Footnote: