DAVENPORT, Calif. >> On a spit of sand 12 miles north of Santa Cruz, a small, emaciated sea lion lay on its side. The only sign of life was the deep press of its flippers against its belly, relaxing for a few seconds, then squeezing again.

“That’s a classic sign of lepto,” said Giancarlo Rulli, a volunteer and spokesperson with the Marine Mammal Center, pointing to the young animal’s wretched self-embrace. The corkscrew-shaped bacteria, leptospirosis, causes severe abdominal pain in sea lions by damaging their kidneys and inflaming their gastrointestinal tracts. “They hold their stomach just like that. Like a sick child with a bellyache,” he said.

Since the end of June, officials say nearly 400 animals have been reported stranded or sickened along the Central Coast beaches. More than two

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