Hammerhead sharks are critically threatened by shark finning and bycatch, with some species having declined by over 90% due to demand for shark fin soup in Asian markets.
Shark finning causes a particularly prolonged death: finned sharks are thrown back into the water where they sink to the bottom, unable to swim, and slowly suffocate or are eaten alive. Whether sharks experience suffering in a morally significant way is uncertain, but their behavioral responses to injury suggest significant nociceptive capacity. The ecological welfare consequences of removing apex predators like hammerheads — through cascading effects on prey species and ecosystem structure — extend far beyond individual shark welfare to the entire marine communities they regulate.