Masses of ephemeral organisms known as ‘by-the-wind sailors’ wash up in a ‘blue tide’ on the west coast most years but warmer winter seas could be increasingly their numbersFrom Oregon to California, blankets of alien-like blue creatures are washing up on rocky beaches. They are Velella velella, tiny colonies of organisms with a sombrero-esque fin sticking out the top and tentacles dangling down.Millions have been spotted along the US west coast this spring, much to the surprise and delight of... Read this story
