Sea otters are a keystone species whose welfare is threatened by oil spills, prey depletion from commercial fishing, and climate-driven changes to kelp forest ecosystems.
An oil-contaminated sea otter experiences a welfare emergency. Within hours of fur contamination, the animal loses its thermal protection and begins losing body temperature. The desperate grooming behaviour that follows — trying to restore fur condition by consuming contaminated oil — accelerates toxic poisoning. Without rapid rescue, decontamination, and warming, affected otters die from hypothermia and organ failure within days. The rehabilitation process is intensive: sea otters in care require round-the-clock feeding, thermal support, and eventually re-training of natural foraging behaviours before release. The success of rehabilitation programmes depends on rapid response capacity that requires standing investment before an oil spill occurs. Prey depletion creates a slower but equally real welfare crisis — animals unable to meet their very high daily energy requirements face starvation and reproductive failure.