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Orca Dorsal Fin Collapse - ThoughtCo
Learn why a killer whale's dorsal fin collapses or flops over when in captivity and whether this happens in whales — or orcas — that live in the wild.

Why Do Orcas’ Dorsal Fins Collapse in Captivity?
While an upright dorsal fin is the natural state for a healthy orca, a significant majority of captive adult male orcas display a fin that is severely folded over. This condition immediately draws attention to the vast difference between life in the open ocean and life in a concrete enclosure.

Why Do Orca Fins Bend in Captivity? - Collapsed Dorsal Fin in Killer Whales
While a collapsed dorsal fin does occur in wild killer whales, it is uncommon. Most captive orcas have a bent dorsal fin and the reasons why affect their welfare.

Orca Dorsal Fin Collapse: Captivity vs Wild Comparisons - Nahf
Learn about orca dorsal fin collapse in captivity vs. the wild—causes, effects, and why it highlights animal welfare concerns in marine parks.

Why do captive orcas have drooping dorsal fins? - Discover Wildlife
Though drooping dorsal fins are occasionally seen in wild orcas, it does seem more common among captive animals – especially the longer-finned males. It’s not entirely clear why.

SeaWorld Fact Check - Dorsal Fin Collapse
Captivity has a range of inherent undesirable problems for orcas, including but not limited to aspects that may affect the upright position of the dorsal fin. This “loss of structural integrity” (LSI) can result in partial or total collapse of the dorsal fin.

Why Do Orcas’ Dorsal Fins Collapse in Captivity?
Explore the physical and environmental reasons why the orca’s unique, non-bony dorsal fin structure fails almost exclusively in captivity.

Why do male orcas fins collapse? - The Institute for Environmental ...
The drooping dorsal fins of some male orcas, a phenomenon known as fin collapse, is primarily attributed to a combination of factors including captivity, genetics, and overall health.

Why Do an Orca’s Dorsal Fins Collapse? - ScienceInsights
The sight of an orca’s towering dorsal fin is iconic, but a collapsed, bent fin is often associated with killer whales in human care. This abnormality, sometimes called flaccid fin or folded fin syndrome, is a structural failure where the fin folds over.

End captivity - Whale and Dolphin Conservation
Dorsal fin collapse happens to 1% of wild orcas. 100% of captive male adult orcas have collapsed dorsal fins. Drugs – some parks give captive whales and dolphins tranquillisers to relieve the stress that they are feeling.

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