Pacific walruses are increasingly forced onto land as Arctic sea ice retreats, creating dangerous overcrowding on haul-out beaches with significant welfare consequences.
Beach haul-outs lack the distributed resting space of sea ice, concentrating walruses in dangerous densities. Stampede events triggered by disturbance - including low-flying aircraft - kill calves that are trampled. Calves separated from mothers in large haul-outs may starve. Noise disturbance from human activity triggers the fatal stampede response. The welfare harm from climate-driven sea ice loss is direct, immediate, and affecting thousands of individuals annually.