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. More from News A triangle pointing ...

"But what we witnessed was an orca, nicknamed Starboard—due to his collapsed dorsal fin—performing alone to incapacitate and consume a white shark within an astounding two-minute timeframe.

“But what we witnessed was an orca, nicknamed Starboard – due to his collapsed dorsal fin – performing alone to incapacitate and consume a white shark within an astounding two-minute timeframe.

On her first day a male orca’s tall dorsal fin pierced the water beside the rubber dinghy she was riding in. The sight left her speechless—and erased all thoughts of plankton. She switched to ...

The animal’s dorsal fin was still floppy, indicating it was less than 24 hours old, according to news reports.

The mama orca, named J35 by researchers ... was excited when they realized they had photographed the tiny dorsal fin of the newborn peaking out of the water, according to CNN.