EAAM members respond to hundreds of calls each year to rescue and rehabilitate injured or sick marine mammals throughout Europe. Rescue and rehabilitation of stranded marine mammals is costly and staff-intensive but important both for individual animal well-being and species conservation. Rescued animals are released into the wild wherever possible. Zoological parks provide homes for animals that cannot be released. Rescue and rehabilitation work generates important knowledge about disease or changes in the natural environment impacting the health or survival of the wild populations.