Harmful algae blooms have been rapidly producing in a place previously too cold to host the toxin: the Arctic.

Marine mammal researchers are investigating how sea lions were affected by the longest toxic algal bloom on record off the coast of Southern California. Some sea lions are being released back into the ...

On a small, gently rocking research boat anchored just offshore in Chesapeake Bay, I lowered a sterile plastic bottle into ...

Illnesses from stealthy pathogens known as Vibrio are advancing northward along numerous coasts, potentially ruining your ...