River dolphins — the Ganges, Indus, Amazon, and Irrawaddy — face extinction pressures from dam construction, fishing gear, and pollution that cause direct welfare harms to individuals in increasingly restricted habitats.
River dolphins live in some of the most heavily human-impacted aquatic environments on earth, facing pollution, fishing gear, boat traffic, and dam-fragmented habitats that constrain their range and resources. Individual river dolphins in degraded habitats experience chronic nutritional stress, elevated contamination burdens, and the physiological stress of navigating increasingly hostile environments. Unlike ocean cetaceans that can travel freely, river dolphins are geographically confined to deteriorating river systems from which escape is impossible. Conservation efforts that reduce bycatch, improve water quality, and halt dam construction in critical river dolphin habitat directly serve individual welfare while preventing the extinction of these unique evolutionary lineages.