Tens of millions of sharks are killed annually for their fins, with finning causing prolonged drowning suffering as de-finned animals are returned to the ocean.
Finning causes one of the most prolonged documented forms of marine animal suffering. De-finned sharks take hours to die as they suffocate while sinking to the ocean floor. Even species caught whole for fins experience significant stress during longline or net capture. Sharks are now recognized as cognitively complex animals capable of learning, making their suffering more significant.