External parasites, such as fleas and ticks, live on the body of the host and produce an infestation.

River otters are unequivocally cute. But their eating habits are not so adorable. Most animals—humans included—separate the place where they defecate from the place where they eat. But river otters ...

For decades, scientists have observed a clear pattern across the natural world: biodiversity tends to be higher near the ...

WARNING ANIMAL DISSECTION! The film "Parasitism: Parasitic Flatworms" explores the relationship between parasitic flatworms and their hosts, detailing how these organisms live off other animals for ...

River otter poop is the perfect for Katrina Lohan's research as it contains DNA from worms, fish, and other organisms, including parasites. Image: National Zoo River otters are unequivocally cute. But ...

Scientists found a parasitic animal in the forests of China, Indonesia and Vietnam and discovered a new species, a study said. Photo from zhang kaiyv via Unsplash In a forest in southern China, a ...

Click here to view Volume IClimate change, agricultural practices, and landscape changes have caused ecosystem fragmentation and increased the parasite ...

New National Forecast Signals Expanding Vector-Borne Disease Risk for Dogs -- with Implications for Human Health and a 94%+ Accurate Early Warning System SALEM, Ore., March 23, 2026 /PRNewswire/ -- ...

When a parasite infects a host, it can manipulate host behavior, which may help spread the parasite to new hosts, or enable the parasite to complete its life cycle. Parasitic worms known as hairworms ...