In 1982, researchers from New Zealand explored the marine acoustics of the Southern Ocean and captured a mysterious noise originating in the South Fiji Basin. The sound strangely resembled a duck ...

But there are some less-obvious features too, like unexpected rubber ducks. Not just one in your bathroom, but lots of them hidden all over the ship. What the heck are these cruise ducks all about?

The count aims to ensure a proper and consistent population estimate before the ducks begin their April migration.