When the tsunami hit the northern coast of Japan last year, the waves ripped four dock floats the size of freight train boxcars from their pilings in the fishing port of Misawa and turned them over to the whims of wind and currents.
One floated up on a nearby island. Two have not been seen again. But one made an incredible journey across 5,000 miles of ocean that ended this week on a popular Oregon beach.
Along for the ride were hundreds of millions of individual organisms, including a tiny species of crab, a species of algae, and a little starfish all native to Japan that have scientists concerned if they get a chance to spread out on the West Coast.