A water source is helping to reduce the risk of the California sea otter from becoming extinct.
The lake in California’s San Joaquin Valley is expected to have a minimum of 500,000 sea otters by the end of this century, up from fewer than 50,000 just last year.
The California Department of Fish and Wildlife says the otters are thriving thanks to increased habitat.
They are also eating more plants, fish and invertebrates than they have in decades.
But, with climate change, they may be heading for extinction.