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Soc. open sci."],"published-print":{"date-parts":[[2022,12]]},"abstract":"<jats:p>Recently, a unique mechanism for protecting the airway during lunge feeding was discovered in rorqual whales (Balaenopteridae). This mechanism is based on an oral plug structure in the soft palate with similarities in musculo-fatty composition to the nasal plugs protecting the respiratory tract of rorquals from water entry and barotrauma during diving. As a follow-up, we present here a developmental series on fetal, prenatal, juvenile and adult specimens across five species of rorquals, showing differential maturation of the nasal and oral respiratory protection plugs. Nasal plugs are fully formed to serve an immediate crucial function at birth. By contrast, the soft palate remains muscular until the onset of solid food intake, where a musculo-fatty oral plug is developed.<\/jats:p>","DOI":"10.1098\/rsos.220459","type":"journal-article","created":{"date-parts":[[2022,12,14]],"date-time":"2022-12-14T08:07:20Z","timestamp":1671005240000},"update-policy":"https:\/\/doi.org\/10.1098\/crossmark-policy","source":"Crossref","is-referenced-by-count":2,"title":["Heterochronic maturation of anatomical plugs for protecting the airway in rorqual whales (Balaenopteridae)"],"prefix":"10.1098","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8833-4456","authenticated-orcid":true,"given":"Henrik","family":"Lauridsen","sequence":"first","affiliation":[{"name":"Department of Clinical Medicine, Aarhus University, 8200 Aarhus N, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7483-5188","authenticated-orcid":false,"given":"Charlotte","family":"Bie Th\u00f8stesen","sequence":"additional","affiliation":[{"name":"The Fisheries and Maritime Museum, 6710 Esbjerg V, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7481-1955","authenticated-orcid":true,"given":"Christina Car\u00f8e Ejlskov","family":"Pedersen","sequence":"additional","affiliation":[{"name":"Department of Forensic Medicine, Aarhus University, 8200 Aarhus N, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5353-7379","authenticated-orcid":true,"given":"Steffen","family":"Ringgaard","sequence":"additional","affiliation":[{"name":"Department of Clinical Medicine, Aarhus University, 8200 Aarhus N, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2285-4368","authenticated-orcid":true,"given":"Mette","family":"Elstrup","sequence":"additional","affiliation":[{"name":"Department of Natural History, Museum of Southern Jutland, 6510 Gram, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0177-0977","authenticated-orcid":false,"given":"Peter Rask","family":"M\u00f8ller","sequence":"additional","affiliation":[{"name":"Natural History Museum of Denmark, University of Copenhagen, 2100 Copenhagen \u00d8, Denmark"},{"name":"Norwegian College of Fishery Science, UiT \u2013 The Arctic University of Norway, 9037 Troms\u00f8, Norway"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniel Klingberg","family":"Johansson","sequence":"additional","affiliation":[{"name":"Natural History Museum of Denmark, University of Copenhagen, 2100 Copenhagen \u00d8, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0084-9122","authenticated-orcid":false,"given":"Aage Kristian Olsen","family":"Alstrup","sequence":"additional","affiliation":[{"name":"Department of Clinical Medicine, Aarhus University, 8200 Aarhus N, Denmark"},{"name":"Department of Nuclear Medicine &amp; PET, Aarhus University Hospital, 8200 Aarhus N, Denmark"},{"name":"Department of Chemistry and Bioscience, Aalborg University, 9220 Aalborg \u00d8, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"175","published-online":{"date-parts":[[2022,12,14]]},"reference":[{"key":"e_1_3_6_2_2","doi-asserted-by":"publisher","DOI":"10.1038\/srep08900"},{"key":"e_1_3_6_3_2","doi-asserted-by":"publisher","DOI":"10.1146\/annurev-marine-122414-033905"},{"key":"e_1_3_6_4_2","doi-asserted-by":"publisher","DOI":"10.1152\/physiol.00010.2019"},{"key":"e_1_3_6_5_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2435.2011.01905.x"},{"key":"e_1_3_6_6_2","doi-asserted-by":"publisher","DOI":"10.1098\/rsif.2008.0492"},{"key":"e_1_3_6_7_2","doi-asserted-by":"publisher","DOI":"10.1242\/jeb.219691"},{"key":"e_1_3_6_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.cub.2021.12.040"},{"key":"e_1_3_6_9_2","doi-asserted-by":"publisher","DOI":"10.1002\/ar.22678"},{"key":"e_1_3_6_10_2","doi-asserted-by":"publisher","DOI":"10.1002\/ar.23990"},{"key":"e_1_3_6_11_2","doi-asserted-by":"publisher","DOI":"10.1098\/rspb.2017.0546"},{"key":"e_1_3_6_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.cub.2018.10.047"},{"key":"e_1_3_6_13_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0145893"},{"key":"e_1_3_6_14_2","doi-asserted-by":"publisher","DOI":"10.3354\/esr00456"},{"key":"e_1_3_6_15_2","doi-asserted-by":"crossref","unstructured":"Lauridsen H Bie Th\u00f8stesen C Pedersen CCE Ringgaard S Elstrup M M\u00f8ller PR Johansson DK Alstrup AKO. 2022 Heterochronic maturation of anatomical plugs for protecting the airway in rorqual whales (Balaenopteridae). 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