In the brackish waters of the Baltic Sea, bladderwrack is the dominant seaweed species as it is one of the few seaweed ...

An curved arrow pointing right. A 5,000-mile-long blob of smelly seaweed is on its way to Florida. It's called sargassum, and it's getting bigger because of warming temperatures. More from News A ...

As summer approaches, beachgoers may need to check an additional forecast detail before heading to the shore: the Sargassum ...