The greatest parasite of the modern age is no blood-sucking invertebrate. It is sleek, glass-fronted and addictive by design.

A new study reveals that eating raw freshwater fish could expose you to dangerous parasitic worms that are spreading across ...

Scientists captured nematodes that stack themselves into a wriggling, vertical tower for the first time. Watch the tiny architects in action.

Scientists have captured the first videos of wild roundworms forming living, wriggling towers that behave as one big superorganism ...

Scientists are just beginning to understand how extreme weather can give pathogens an upper hand, underscoring the urgent ...

The parasites are called trematodes. Two species of the flatworms were discovered in California’s freshwater fish, according ...

A UC San Diego study finds that more than 90% of freshwater game fish in Southern California had parasites capable of ...

Nearly all freshwater game fish at popular recreational fishing areas in Southern California have been exposed to invasive ...

Nearly all freshwater game fish at popular recreational fishing areas in Southern California have been exposed to invasive ...

California fish carry human-infecting parasites that can cause stroke or heart attack, researchers find - Some of the fish ...