Sea otters are a keystone species whose recovery from near-extinction illustrates both conservation success and the ongoing welfare challenges facing recovering populations.
Sea otter welfare operates across a spectrum from the acute harm of oil spills and shark bites to the chronic welfare implications of algal toxin exposure and habitat degradation. Oil contamination destroys the insulating properties of sea otter fur — a welfare emergency that causes rapid hypothermia in animals dependent on their coat rather than blubber for thermal regulation. White shark bites that do not kill cause extensive tissue damage requiring months of rehabilitation. Domoic acid toxicosis causes progressive neurological deterioration that can be agonizing. The Monterey Bay Aquarium Sea Otter Research and Conservation program has pioneered rehabilitation techniques and surrogate mother programs for orphaned pups, demonstrating that individual welfare investment can contribute to population recovery. Sea otter conservation is simultaneously a keystone ecology success story and an ongoing individual welfare challenge.