Sea lamprey can kill freshwater fish. Great Lakes Fish Commison Have you ever seen black spots on the skin of a trout? Or small worms burrowed in the fillets of your crappie? How about a bass that has ...

In the course of studying wrasse skulls, an evolutionary biologist found a parasite hiding inside a fish’s mouth. And not only had the louse eaten the fish’s tongue – it effectively replaced it. The ...

Parasitic isopods, particularly those within the family Cymothoidae, represent a remarkable example of host‐parasite coevolution in marine environments. These crustaceans attach to or embed themselves ...

Parasites give new meaning to the cliché “eat or be eaten.” Often their life cycle can be completed only if they are ingested by a host—multiple times for some—making the odds of their survival ...

Surprising footage reveals parasites attached to the head of a deep-sea fish. These crustaceans, visible in a video shared by the Schmidt Ocean Institute, feed on their host's bodily fluids. The video ...

Parasitic tapeworms have a complex life cycle moving from plankton to fish and then fish-eating birds. New research on how parasite resistance in threespine stickleback fish may lead to a better ...

People who eat forms of raw fish such as sashimi or nigiri should be aware of a new study that has been published by the University of Washington. The study looked into the significant increase in the ...

A UC San Diego’s Scripps Institution of Oceanography study published Tuesday found that more than 90% of freshwater game fish in Southern California had parasites capable of infecting humans and ...

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 ...

A biologist made an unexpected discovery while researching fish heads—a bizarre parasitic crustacean that replaces the tongue of its host. Kory Evans from Rice University in Houston spotted the ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. SAN JOAQUIN COUNTY, Calif. (KTXL) — The ...