Starting in 2013, a wasting disease caused a mass die-off from Mexico to Alaska, devastating more than 20 species.
In this photo provided by the Hakai Institute, a sunflower sea star is reduced to goo by sea star wasting disease at Calvert Island, British Columbia, Canada, in 2015. (Grant Callegari/Hakai Institute via AP)
WASHINGTON — Scientists say they have at ... [3886 chars]