from http://abcnews.go.com/Technology/wireStory/scientists-baffled-strange-sea-creatures-alaska-48423948
Strange sea creatures that resemble large pink thimbles are showing up on the coast of southeast Alaska for the first time after making their way north along the West Coast for the last few years.

Scientists say the creatures are pyrosomes, which are tropical, filter-feeding spineless creatures usually found along the equator. They appear to be one long pink tube, but in reality, they’re thousands of multi-celled creatures mushed together, generally about 6 inches (15 centimeters) long.

Pyrosomes have been working their way north, Ric Brodeur, a researcher with the U.S. National Oceanic and Atmospheric Administration, told the Associated Press on Monday.

Brodeur, who is based at the agency’s Northwest Fisheries Science Center in Newport, Oregon, said pyrosomes were first seen on the Oregon coast in 2014 and every year since. More recently, the animals have made their way up farther north on the Washington state coast, Canada’s British Columbia and Alaska.

Jim Murphy, a biologist with the U.S. National Oceanic and Atmospheric Administration, said pyrosomes spotted near Alaska this year marked the first documented presence of the animals that far north, and their appearance is cause for concern.


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