2011 tsunami carried a million Japanese sea creatures to US west coast

The deadly tsunami that struck northeast Japan in 2011 has carried almost 300 species of sea life thousands of kilometres across the Pacific Ocean to the west coast of the United States.
In what experts are calling the longest maritime migration ever recorded, an estimated one million creatures – including crustaceans, sea slugs and sea worms – made the 7,725km journey on a flotilla of tsunami debris.
“This has turned out to be one of the biggest unplanned natural experiments…