What’s ailing the sea lions stranded on California beaches?

Dozens of the marine animals are being found on the state's southern beaches exhibiting signs of domoic acid poisoning

The concerned calls began in mid-August. Sea lions - mostly adult females - were turning up along the southern California coast with signs of poisoning: disoriented and agitated, with their heads bobbing and their mouths foaming.

Marine animal organizations say they were inundated with inquiries from alarmed beachgoers. We are responding to 50-100 calls a day," the Channel Islands Marine and Wildlife Institute, which works in the island region off the coast of Los Angeles, wrote on Instagram.