The prevalence of vestigial teeth in two beaked whale species from the North Atlantic
Beaked whales, Family Ziphiidae, occur in deep offshore and oceanic seas, where they are very difficult to study, so that much of our knowledge about them is derived from stranded animals. Most beaked whales (e.g., genera and ) have only one pair of mandibular teeth. A reduced dentition is widely re...
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Walter de Gruyter GmbH
2023
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Online Access: | https://doi.org/10.1515/mammalia-2022-0099 |
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ftnmscotlanddc:oai:hyku:fa4d5a4f-dd00-4945-8607-5925327bb8c3 2023-05-15T17:33:10+02:00 The prevalence of vestigial teeth in two beaked whale species from the North Atlantic Hantke, Georg Kitchener, Andrew C Kinze, Carl Chr Schwarz, Tobias Davison, Nicholas J Doeschate, Mariel ten Herman, Jeremy S Brownlow, Andrew 2023-02-06 https://doi.org/10.1515/mammalia-2022-0099 unknown Walter de Gruyter GmbH Mammalia https://doi.org/10.1515/mammalia-2022-0099 doi:10.1515/mammalia-2022-0099 Mesoplodon pathology Ziphius vestigial teeth Article 2023 ftnmscotlanddc https://doi.org/10.1515/mammalia-2022-0099 2023-02-23T23:12:46Z Beaked whales, Family Ziphiidae, occur in deep offshore and oceanic seas, where they are very difficult to study, so that much of our knowledge about them is derived from stranded animals. Most beaked whales (e.g., genera and ) have only one pair of mandibular teeth. A reduced dentition is widely regarded as an adaptation to suction feeding, primarily on squid. However, vestigial maxillary and mandibular teeth have been recorded in some species. Here, we describe new records of vestigial teeth in 12 Sowerby’s beaked whales, and one Cuvier’s beaked whale, from a total 14 animals of these species, which stranded in 2019–2021 in Scotland. In nine some tooth crowns were erupted and mild occlusal wear was visible, whereas pathological teeth were seen in ten individuals. The occurrence of vestigial teeth in Sowerby’s beaked whale appears to be significantly under-recorded, suggesting that vestigial teeth form as part of the normal development of the dentition. The reasons for the under-recording of the occurrence and the possible functionality of vestigial teeth in ziphiids are discussed. Article in Journal/Newspaper North Atlantic National Museums Scotland (NMS) Research Repository Mammalia 87 2 190 200 |
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Open Polar |
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National Museums Scotland (NMS) Research Repository |
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ftnmscotlanddc |
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Mesoplodon pathology Ziphius vestigial teeth |
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Mesoplodon pathology Ziphius vestigial teeth Hantke, Georg Kitchener, Andrew C Kinze, Carl Chr Schwarz, Tobias Davison, Nicholas J Doeschate, Mariel ten Herman, Jeremy S Brownlow, Andrew The prevalence of vestigial teeth in two beaked whale species from the North Atlantic |
topic_facet |
Mesoplodon pathology Ziphius vestigial teeth |
description |
Beaked whales, Family Ziphiidae, occur in deep offshore and oceanic seas, where they are very difficult to study, so that much of our knowledge about them is derived from stranded animals. Most beaked whales (e.g., genera and ) have only one pair of mandibular teeth. A reduced dentition is widely regarded as an adaptation to suction feeding, primarily on squid. However, vestigial maxillary and mandibular teeth have been recorded in some species. Here, we describe new records of vestigial teeth in 12 Sowerby’s beaked whales, and one Cuvier’s beaked whale, from a total 14 animals of these species, which stranded in 2019–2021 in Scotland. In nine some tooth crowns were erupted and mild occlusal wear was visible, whereas pathological teeth were seen in ten individuals. The occurrence of vestigial teeth in Sowerby’s beaked whale appears to be significantly under-recorded, suggesting that vestigial teeth form as part of the normal development of the dentition. The reasons for the under-recording of the occurrence and the possible functionality of vestigial teeth in ziphiids are discussed. |
format |
Article in Journal/Newspaper |
author |
Hantke, Georg Kitchener, Andrew C Kinze, Carl Chr Schwarz, Tobias Davison, Nicholas J Doeschate, Mariel ten Herman, Jeremy S Brownlow, Andrew |
author_facet |
Hantke, Georg Kitchener, Andrew C Kinze, Carl Chr Schwarz, Tobias Davison, Nicholas J Doeschate, Mariel ten Herman, Jeremy S Brownlow, Andrew |
author_sort |
Hantke, Georg |
title |
The prevalence of vestigial teeth in two beaked whale species from the North Atlantic |
title_short |
The prevalence of vestigial teeth in two beaked whale species from the North Atlantic |
title_full |
The prevalence of vestigial teeth in two beaked whale species from the North Atlantic |
title_fullStr |
The prevalence of vestigial teeth in two beaked whale species from the North Atlantic |
title_full_unstemmed |
The prevalence of vestigial teeth in two beaked whale species from the North Atlantic |
title_sort |
prevalence of vestigial teeth in two beaked whale species from the north atlantic |
publisher |
Walter de Gruyter GmbH |
publishDate |
2023 |
url |
https://doi.org/10.1515/mammalia-2022-0099 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Mammalia https://doi.org/10.1515/mammalia-2022-0099 doi:10.1515/mammalia-2022-0099 |
op_doi |
https://doi.org/10.1515/mammalia-2022-0099 |
container_title |
Mammalia |
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87 |
container_issue |
2 |
container_start_page |
190 |
op_container_end_page |
200 |
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1766131588633985024 |