Infrasonic and Ultrasonic Hearing Evolved after the Emergence of Modern Whales
International audience Mysticeti (baleen whales) and Odontoceti (toothed whales) today greatly differ in their hearing abilities: Mysticeti are presumed to be sensitive to infrasonic noises [1, 2, 3], whereas Odontoceti are sensitive to ultrasonic sounds [4, 5, 6]. Two competing hypotheses exist reg...
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ftunimontpellier:oai:HAL:hal-01894431v1 2024-05-19T07:38:02+00:00 Infrasonic and Ultrasonic Hearing Evolved after the Emergence of Modern Whales Mourlam, Mickaël J. Orliac, Maeva Institut des Sciences de l'Evolution de Montpellier (UMR ISEM) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS) 2017-06 https://hal.science/hal-01894431 https://doi.org/10.1016/j.cub.2017.04.061 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cub.2017.04.061 hal-01894431 https://hal.science/hal-01894431 doi:10.1016/j.cub.2017.04.061 ISSN: 0960-9822 EISSN: 1879-0445 Current Biology - CB https://hal.science/hal-01894431 Current Biology - CB, 2017, 27 (12), pp.1776 - 1781.e9. ⟨10.1016/j.cub.2017.04.061⟩ [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology info:eu-repo/semantics/article Journal articles 2017 ftunimontpellier https://doi.org/10.1016/j.cub.2017.04.061 2024-05-01T00:39:23Z International audience Mysticeti (baleen whales) and Odontoceti (toothed whales) today greatly differ in their hearing abilities: Mysticeti are presumed to be sensitive to infrasonic noises [1, 2, 3], whereas Odontoceti are sensitive to ultrasonic sounds [4, 5, 6]. Two competing hypotheses exist regarding the attainment of hearing abilities in modern whales: ancestral low-frequency sensitivity [7, 8, 9, 10, 11, 12, 13] or ancestral high-frequency sensitivity [14, 15]. The significance of these evolutionary scenarios is limited by the undersampling of both early-diverging cetaceans (archaeocetes) and terrestrial hoofed relatives of cetaceans (non-cetacean artiodactyls). Here, we document for the first time the bony labyrinth, the hollow cavity housing the hearing organ, of two species of protocetid whales from Lutetian deposits (ca. 46–43 Ma) of Kpogamé, Togo. These archaeocete cetaceans, which are transitional between terrestrial and aquatic forms, prove to be a key for determining the hearing abilities of early whales. We propose a new evolutionary picture for the early stages of this history, based on qualitative and quantitative studies of the cochlear morphology of an unparalleled sample of extant and extinct land artiodactyls and cetaceans. Contrary to the hypothesis that archaeocetes have been more sensitive to high-frequency sounds than their terrestrial ancestors [15], we demonstrate that early cetaceans presented a cochlear functional pattern close to that of their terrestrial relatives, and that specialization for infrasonic or ultrasonic hearing in Mysticeti or Odontoceti, respectively, instead only occurred in fully aquatic whales, after the emergence of Neoceti (Mysticeti+Odontoceti). Article in Journal/Newspaper baleen whales toothed whales Université de Montpellier: HAL Current Biology 27 12 1776 1781.e9 |
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Open Polar |
collection |
Université de Montpellier: HAL |
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ftunimontpellier |
language |
English |
topic |
[SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology |
spellingShingle |
[SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology Mourlam, Mickaël J. Orliac, Maeva Infrasonic and Ultrasonic Hearing Evolved after the Emergence of Modern Whales |
topic_facet |
[SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology |
description |
International audience Mysticeti (baleen whales) and Odontoceti (toothed whales) today greatly differ in their hearing abilities: Mysticeti are presumed to be sensitive to infrasonic noises [1, 2, 3], whereas Odontoceti are sensitive to ultrasonic sounds [4, 5, 6]. Two competing hypotheses exist regarding the attainment of hearing abilities in modern whales: ancestral low-frequency sensitivity [7, 8, 9, 10, 11, 12, 13] or ancestral high-frequency sensitivity [14, 15]. The significance of these evolutionary scenarios is limited by the undersampling of both early-diverging cetaceans (archaeocetes) and terrestrial hoofed relatives of cetaceans (non-cetacean artiodactyls). Here, we document for the first time the bony labyrinth, the hollow cavity housing the hearing organ, of two species of protocetid whales from Lutetian deposits (ca. 46–43 Ma) of Kpogamé, Togo. These archaeocete cetaceans, which are transitional between terrestrial and aquatic forms, prove to be a key for determining the hearing abilities of early whales. We propose a new evolutionary picture for the early stages of this history, based on qualitative and quantitative studies of the cochlear morphology of an unparalleled sample of extant and extinct land artiodactyls and cetaceans. Contrary to the hypothesis that archaeocetes have been more sensitive to high-frequency sounds than their terrestrial ancestors [15], we demonstrate that early cetaceans presented a cochlear functional pattern close to that of their terrestrial relatives, and that specialization for infrasonic or ultrasonic hearing in Mysticeti or Odontoceti, respectively, instead only occurred in fully aquatic whales, after the emergence of Neoceti (Mysticeti+Odontoceti). |
author2 |
Institut des Sciences de l'Evolution de Montpellier (UMR ISEM) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Mourlam, Mickaël J. Orliac, Maeva |
author_facet |
Mourlam, Mickaël J. Orliac, Maeva |
author_sort |
Mourlam, Mickaël J. |
title |
Infrasonic and Ultrasonic Hearing Evolved after the Emergence of Modern Whales |
title_short |
Infrasonic and Ultrasonic Hearing Evolved after the Emergence of Modern Whales |
title_full |
Infrasonic and Ultrasonic Hearing Evolved after the Emergence of Modern Whales |
title_fullStr |
Infrasonic and Ultrasonic Hearing Evolved after the Emergence of Modern Whales |
title_full_unstemmed |
Infrasonic and Ultrasonic Hearing Evolved after the Emergence of Modern Whales |
title_sort |
infrasonic and ultrasonic hearing evolved after the emergence of modern whales |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.science/hal-01894431 https://doi.org/10.1016/j.cub.2017.04.061 |
genre |
baleen whales toothed whales |
genre_facet |
baleen whales toothed whales |
op_source |
ISSN: 0960-9822 EISSN: 1879-0445 Current Biology - CB https://hal.science/hal-01894431 Current Biology - CB, 2017, 27 (12), pp.1776 - 1781.e9. ⟨10.1016/j.cub.2017.04.061⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cub.2017.04.061 hal-01894431 https://hal.science/hal-01894431 doi:10.1016/j.cub.2017.04.061 |
op_doi |
https://doi.org/10.1016/j.cub.2017.04.061 |
container_title |
Current Biology |
container_volume |
27 |
container_issue |
12 |
container_start_page |
1776 |
op_container_end_page |
1781.e9 |
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1799477428304740352 |