Digital models of a fish skull revealed a parasitic stowaway inside its mouth: a "tongue biter" isopod that consumed and then replaced the fish's tongue.
They’re small, sneaky, and likely to make you sick. From viruses, to bacteria, to pesky protozoa, here are the latest findings on the parasites that live among (and on, and in) the creatures of the Earth.
Anglerfish are literally missing part of their immune system, but this allows them to permanently fuse during sex, new research suggests
Not only does the fungus Massospora infect cicadas, eat their bodies and turn them into mind-controlled zombies, it forces them to attract more cicada victims.
Fossil brachiopods from China were crusted with parasites, which may have hijacked their hosts' feeding structures in order to steal their dinner.
Researchers discovered a new species while looking at Twitter photos. They have named the parasite Troglomyces twitteri.
A genomic analysis of the creepy parasite H. salminicola reveals that the creature has no mitochondrial DNA and no way to breathe — two animal firsts.
Infections with an intestinal parasite have surged in Massachusetts in recent months, according to health officials.
People may be picking up rat lungworm disease by eating a fast-climbing creature that's part slug, part snail.
Not to spoil your summer pool fun, but outbreaks of "crypto," a swimming-related diarrheal illness, are on the rise.
When is it a huge relief to hear you have a parasite lurking in your brain? When it's not a cancerous brain tumor.
Last December, a tourist in Hawaii ate a slug on a dare — not realizing, of course, a wiggly brain-loving parasite was along for the ride.
Meet the ubiquitous "face mites" that live in your pores, eat your grease and have sex on your face while you sleep.
A new report describes five cases of "extreme" sand flea infections in Colombia, showing that life-threatening illnesses with this parasite still occur.