{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,21]],"date-time":"2026-07-21T09:10:58Z","timestamp":1784625058134,"version":"3.55.0"},"reference-count":42,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2018,12,13]],"date-time":"2018-12-13T00:00:00Z","timestamp":1544659200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["anatomypubs.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["The Anatomical Record"],"published-print":{"date-parts":[[2019,5]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>Many Mysticetes (baleen whales) are acoustically active marine mammals. This is epitomized by rorquals, and specifically male humpback whales (<jats:italic>Megaptera novaeangliae<\/jats:italic>) whose complex songs comprise a wide range of vocalizations. The sound production mechanism of odontocetes (toothed whales, including dolphins and porpoises) is well described, in contrast to that of mysticetes whose vocalization mechanism remains a subject of active scientific investigation. Anatomical observations and acoustic signal processing have led to divergent hypotheses under the framework of a production\u2010based approach. We attempt to unify these hypotheses by broadening existing data with our new anatomical investigation, interpreted in light of known acoustical properties of mysticete vocalizations. We examined 15 specimens of four rorqual species: sei whale (<jats:italic>Baleanoptera borealis<\/jats:italic>), fin whale (<jats:italic>Baleanoptera physalus<\/jats:italic>)<jats:italic>,<\/jats:italic> minke whale (<jats:italic>Baleanoptera acutorostrata<\/jats:italic>)<jats:italic>,<\/jats:italic> and humpback whale (<jats:italic>Megaptera novaeangliae<\/jats:italic>). Based on these data and on previous literature, we propose a description of three functional positions (rest, breathing, and recirculation), unidirectional egressive airflow for sound production (from lungs to laryngeal sac), and new nomenclature for different parts of the U\u2010fold (distal section, midsection, and corniculate flaps). Each of these sections has specific morphological and acoustical properties that support the concept of \u201cmode variation\u201d in baleen whale vocalizations. Anat Rec, 2018. \u00a9 2018 Wiley Periodicals, Inc. Anat Rec, 302:703\u2013717, 2019. \u00a9 2018 Wiley Periodicals, Inc.<\/jats:p>","DOI":"10.1002\/ar.24034","type":"journal-article","created":{"date-parts":[[2018,11,17]],"date-time":"2018-11-17T08:54:00Z","timestamp":1542444840000},"page":"703-717","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":26,"title":["Anatomy and Functional Morphology of the Mysticete Rorqual Whale Larynx: Phonation Positions of the U\u2010Fold"],"prefix":"10.1002","volume":"302","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1148-7243","authenticated-orcid":false,"given":"JULIETTE","family":"DAMIEN","sequence":"first","affiliation":[{"name":"Institute of Sound and Vibration Research (ISVR) University of Southampton  Southampton UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"OLIVIER","family":"ADAM","sequence":"additional","affiliation":[{"name":"Sorbonne Universit\u00e9s UPMC Universit\u00e9 Paris 06, CNRS, UMR 7190, Institut Jean Le Rond d'Alembert  F\u201075005 Paris France"},{"name":"Institute of Neurosciences Paris Saclay CNRS UMR 9197, Universit\u00e9 Paris Sud  Orsay France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"DORIAN","family":"CAZAU","sequence":"additional","affiliation":[{"name":"ENSTA Bretagne Lab\u2010STICC CNRS UMR 6285, Universit\u00e9 Europ\u00e9enne de Bretagne  Brest France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"PAUL","family":"WHITE","sequence":"additional","affiliation":[{"name":"Institute of Sound and Vibration Research (ISVR) University of Southampton  Southampton UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"JEFFREY T.","family":"LAITMAN","sequence":"additional","affiliation":[{"name":"Center for Anatomy and Functional Morphology Icahn School of Medicine at Mount Sinai  New York New York"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4180-7156","authenticated-orcid":false,"given":"JOY S.","family":"REIDENBERG","sequence":"additional","affiliation":[{"name":"Center for Anatomy and Functional Morphology Icahn School of Medicine at Mount Sinai  New York New York"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2018,12,13]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.apacoust.2013.04.007"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4612-1150-1_10"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/joa.12250"},{"key":"e_1_2_8_5_1","unstructured":"CazauD.2012. 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