In the southern state of Chiapas, which borders Guatemala, the New World screwworm fly's rapid spread appears to have caught ...

A new study reports on a novel way to short-circuit the parasite that spreads the disease so people wouldn't get infected ...

While both parasites can infect moose, they typically fail to reproduce in moose as they do in deer. Neither of these parasites infects humans.

Cowbird mothers abandon their eggs in the nests of other bird species, but the chicks somehow manage to find their flock and learn what they really are.

Is A Cat Poop Parasite Decapitating Human Sperm Contributing To Rising Infertility? Research suggests Toxoplasma gondii can infect male testes and wreck havoc on sperm.

Common Brain Parasite Infecting Up To 30 Percent Of Americans Disrupts Neuron Communication The discovery may lead to ways to diagnose and treat the condition that many people don't realize they have.

Conservative influencers are pushing livestock dewormers along with DIY “detox” potions, and people are posting photos of their soiled toilet bowls (again).

Two species of fish-borne parasites have been found in freshwater fish routinely caught for consumption. Researchers say people could be eating the fish ...

Parasites in California freshwater fish can cause gastrointestinal problems, weight loss and lethargy.

More than 90 percent of popular Southern California freshwater game fish sampled in a new study contained invasive worms capable of infecting humans, scientists warn. The parasites — two species ...

From these benign origins, however, we argue the relationship has become parasitic. Such a change is not uncommon in nature; a mutualist can evolve to become a parasite, or vice versa.

Howler monkeys in Costa Rica are facing a growing threat from bot fly larvae infestations, and new research points to tourism and land use changes as key drivers. A study by the Awá Science and ...