Giant squid terrorise Californian coast
Interesting story, and it made me think immediately of Frank Schätzing's rather good thriller Der Schwarm (which I see has been published in English as The Swarm) in which marine life starts attacking humanity in all kinds of interesting and horrifying ways.
Although recent events in California may not be as exciting as they at first sounded, as noted at the end of the Guardian article.
Roger Uzun, a veteran scuba diver and amateur underwater videographer, swam with a swarm of the creatures for about 20 minutes and said they appeared more curious than aggressive. The animals taste with their tentacles, he said, and seemed to be touching him and his wet suit to determine if he was edible.
Ah, well that's OK then.