Add Yahoo as a preferred source to see more of our stories on Google. Largemouth bass were among fish analyzed for parasites. (DEA / A. CALEGARI / Getty Images) More than 90% of popular freshwater ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Southern Californians have been warned that more than 90 percent of ...

In a recent study, Brazilian scientists found that nearly all of the sushi-grade tuna they examined were infested with ...

Using powerful microscopy tools as aids, they found that the kidney and heart were the only organs free of parasites in every ...

More than 90% of popular freshwater game fish in Southern California contain an introduced parasite capable of infecting humans, according to a new study by researchers at UC San Diego's Scripps ...

At the heart of the Amazon, researchers are investigating a mysterious parasite which is devastating fish farms around the world. Parasites called myxozoa infect fish populations with deadly diseases, ...

At the heart of the Amazon researchers are investigating a mysterious parasite which is devastating fish farms around the world. At the heart of the Amazon researchers are investigating a mysterious ...

The fishing industry is scrambling to contain the spread of a deadly parasite, which has killed millions of farmed fish globally. Researchers in the Amazon are investigating the group of microscopic ...

Nearly an entire haul of skipjack tuna caught in Brazil was found contaminated with gut-busting parasites like roundworm.

A McDonald's customer recently posted on Reddit after finding a parasite in a Filet-O-Fish sandwich. Commenters on the thread quickly pointed out that this is actually common in wild-caught fish.