Scientists have identified a brand-new species of worm living in the Great Salt Lake, marking only the third known animal group able to survive its extreme salinity. The species, named Diplolaimelloides woaabi with guidance from Indigenous elders, appears to exist only in this lake. How it got there remains a mystery, with theories ranging from ancient oceans to birds transporting it across continents. The discovery could help scientists track the lake’s health as conditions rapidly change.