Measure ad performance. Select basic ads. Create a personalised ads profile. Select personalised ads. Apply market research to generate audience insights. Measure content performance. Develop and improve products. List of Partners vendors. Share Flipboard Email. Jennifer Kennedy. Marine Science Expert. Jennifer Kennedy, M. Updated January 28, Featured Video. Instead of the usual straight, tall dorsal fin, its entire fin was flopped over to the side, flat against its back. As I listened to her recount the sighting, I had a sneaky suspicion that I knew who the whale was.
After all, a completely flopped over fin is not a terribly common sight on a wild killer whale. B13, also known as Yuculta, is a male northern resident killer whale born in He is one of the most easily identified northern residents due to his flopped over fin, which rests along his back to the left. See a video of this matriline shot near Ketchikan, Alaska this year here. As a juvenile, his fin, like all juvenile males and females, would have been small and curved.
Ulises , an adult male, at SeaWorld San Diego. Photo submitted by orcalover Cetacean Captivity. Post navigation Next post Unnatural Diet. Search for:. But once the group was released back to the wild the fins reverted to normal. While temperature is a leading theory, some experts think speed could also be a factor. In the wild, killer whales swim on average 3 to 4 mph and can sprin t at speeds up to 34 mph.
At those speeds, water creates a considerable force against the fin, which could keep the fin strong and upright. Captive whales don't have enough space to reach these speeds. Ultimately, the curved dorsal fin is still a mystery. Curved, or not, the orca's giant fin is a beacon to all, this apex predator is a force to reckon with. World globe An icon of the world globe, indicating different international options.
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