You might look at the Mississippi and think, "There's no way anything weird lives in there." Surprise—you'd be wrong. Lurking ...

Many ships have reportedly become trapped in its seaweed-choked waters, leading to legends of derelict ghost ships and even ...

A clump of sargassum weed the size of a soccer ball drifts near Bermuda in the slow swirl of the Sargasso Sea, part of the North Atlantic gyre. A weed mass this small may shelter thousands of ...