A highly-venomous but dead yellow-bellied sea snake from southern Mexico has been discovered on Bolsa Chica beach, only the third one ever reported in California. During a clean-up session on the beach, the sea snake was found. All the California sightings have come during El Nino years when oceans are warmer than usual. The last one was washed ashore at Silver Strand Beach in Oxnard in October. One other was found in 1972 at San Clemente State Beach.