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.

Using genome reconstruction, scientists unveiled a once 'invisible' fish parasite present in many marine fish world-wide that belongs to the apicomplexans, one of the most important groups of ...

Mutualism is a type of symbiotic relationship in which both parties gain some form of benefit from their interactions. Many ...

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 ...

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 popular game fish have been found to contain invasive ...

More than 90% of popular freshwater fish in Southern California are carrying human-infecting parasites, researchers say. This poses a significant danger for those who like to eat freshly caught ...

McDonald's Filet-O-Fish is a beloved menu item for a reason. Made with wild-caught Alaskan Pollock, American cheese, tartar sauce, and served on a steamed bun, the sandwich has built a loyal following ...