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Humpback Whale Unusual Dorsal Fin

A humpback whale (Megaptera novaeangliae) that had an unusual dorsal fin, one that was split into three sections. It was not possible to determine whether this split dorsal was present from birth, or whether it was the result of an accident such as a propellor strike. This whale was one of eight or nine that engaged in bubble net feeding together during an overcast day.

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Filename: unusual-dorsal-fin-humpback-whale-alaska-201607-2096.tif
Copyright: Copyright Tony Wu. All rights reserved. No duplication, reproduction or usage without prior written permission.
Image Size: 5188x3459 / 51.4MB; https://www.photoshelter.com/support/license#rm; https://www.tony-wu.com/contact-tony-wu; Humpback Whale Animalia Chordata Mammalia Eutheria Cetacea Mysticeti Balaenopteridae Megaptera novaeangliae Megaptera novaeangliae kuzira North Pacific Humpback Whale Cetartiodactyla Baleen Whale CITES Appendix 1 Filter Feeder Least Concern: IUCN Red List Marine Mammal Mysticete Rorqual Bubble-net Feeding Cooperative Hunting Feeding Social Foraging Dorsal Pacific United States of America Alaska Juneau Chatham Strait
Contained in galleries: Bubble Net Feeding, Humpback Whale Activity, Ship Strikes, Strandings, Skeletons

A humpback whale (Megaptera novaeangliae) that had an unusual dorsal fin, one that was split into three sections. It was not possible to determine whether this split dorsal was present from birth, or whether it was the result of an accident such as a propellor strike. This whale was one of eight or nine that engaged in bubble net feeding together during an overcast day.