The California sea otter is a species endemic to the west coast of North America but has been threatened in recent years by parasitic infections. These parasites, which mainly come from cats and drinking contaminated water, can cause liver and spleen damage in sea otters, and even death in severe cases.
Scientists have begun taking action to protect this precious marine mammal through monitoring and treatment. In addition, the public should also strengthen environmental protection and awareness raising, and jointly make positive contributions to maintaining ecological balance and the diversity of nature.