A shocking new study shows that 90% of freshwater fish in Southern California may be carrying parasites that can infect ...

Two men in Massachusetts and New York, who are 61 and 66 years old, have been left riddled with parasitic worms after ...

Scientists have long sought to understand why sea spiders keep some of their most important organs in their legs.

A University of California, Riverside-led team has made an advance in the basic understanding of Plasmodium falciparum, the ...

Ticks are parasites that bite and feed on humans and pets. They can spread Lyme disease and other infections. Here's what to ...

Humankind's tangled shrub of ancestry now has a new branch: Researchers in the Philippines announced today that they have discovered a species of ancient human previously unknown to science ...

Previous studies have linked the parasite to mind-altering behavior, such as risk-taking, depression and even schizophrenia.