Sperm whales are deeply social, culturally sophisticated cetaceans whose welfare is impacted by noise pollution, ship strikes, and the legacy of industrial whaling that devastated their communities.
Sperm whale welfare has a historical dimension that is easily overlooked: the social structures we observe today in sperm whale populations are shaped by the trauma of industrial whaling. Killing of females and calves — who were caught near the surface during whaling operations — removed culturally essential matriarchs and disrupted cultural knowledge transmission. Modern sperm whale populations may still carry the demographic scars of this period. Present-day welfare threats include noise pollution that interferes with echolocation, plastic ingestion that causes intestinal obstruction, and ship strikes in busy shipping lanes. The cultural sophistication of sperm whales — their dialects, their family bonds, their knowledge of feeding grounds — means that welfare harm is not just physical but social and cognitive.