Two beaches in Southern California have been inundated by hundreds of bright red and orange crabs, in what experts believe is an event linked to El Niño. Video clip at the bottom of page Southern California has been invaded by a swarm of crimson crabs, scrambling from the ocean to carpet the shoreline in a writhing mass of crustacean critters. It is not the first assault by these bright red "tuna crabs," which resemble mini lobsters about two inches long. And the thousand or so that washed up on two beaches Wednesday are nothing when compared with last June's incursion of hundreds of thousands all along the coastline. Nevertheless, the unfamiliar sight was "shocking" to some of the ramblers on Imperial and Huntington beaches, unprepared to face an army of snapping sea creatures. "I got pinched by one," Katie Glover, who was visiting the area for the first time from Los Angeles, told The Orange County Register. "It was on my foot. We were walking, and my little Yorkie ran past it and