While bluebottles are highly poisonous, understanding Portuguese Man O' War biodiversity helps protect beachgoers and surfers.

Researchers have identified a species of blue-green algae in the Duluth-Superior harbor that’s capable of producing harmful ...

What they found was distinct genetic differences between groups of man o' wars from different areas, despite some overlap between the populations, according to the study. "We were ...

Warming waters are causing the colors of the ocean to change -- a trend that could impact humans if it were to continue, ...