Rubber Ducks Map Ocean Currents

A massive storm in the North Pacific in January 1992 unwittingly launched one of the most unusual oceanography experiments in history. A shipping container fell from the deck of a cargo ship, spilling its contents into the sea: nearly 29,000 plastic bath toys. This fleet of "Friendly Floatees," which included yellow ducks, blue turtles, green frogs, and red beavers, began an incredible journey that caught the attention of retired oceanographer Curtis Ebbesmeyer. He realized this accidental spill was a unique opportunity to study the vast, complex system of surface currents that circulate around the globe.

Ebbesmeyer began tracking the toys by networking with beachcombers, lighthouse keepers, and coastal residents worldwide. The first Floatees washed ashore ten months later along the coast of Alaska. From there, their paths diverged. Some drifted west to Japan, while others completed a full three-year circuit of the North Pacific Gyre, a large, rotating system of currents. In a testament to global ocean circulation, some toys were even predicted to have traveled north, become frozen (Review) in Arctic sea ice, and emerged years later in the Atlantic Ocean.

The data gathered from these "accidental oceanographers" provided invaluable, real-world information that helped scientists validate and refine their computer models of ocean currents. Sightings were reported for over 15 years in places as distant as Hawaii, South America, and even Scotland. This charming flotilla of bath toys became a famous and easily understood example of how interconnected our planet's oceans truly are, demonstrating the immense power that carries water—and anything floating in it—across the world.