A parasite is an organism that depends upon another organism, known as a host, for food and shelter. The parasite usually gains all the benefits of this relationship, while the host may suffer from various diseases and discomforts, or show no signs of...

The parasitic mode of existence is frequently encountered among all life forms, including flowering plants. In this discussion a plant will be considered parasitic only if it produces a haustorium, the modified root that forms the morphological and...

Organisms that live in or upon the body of a host organism and are metabolically dependent on the host for completion of their life cycle. Parasites may be plants, animals, viruses, bacteria, or fungi. Parasites feed either on their host directly or...

A parasite is a plant or animal that lives and feeds on another plant or animal. The existence of parasites was recognized as far back as 1500 b.c. The Ebes papyrus of that date mentions hookworm infections among the Egyptian royalty. Greek physicians...

Parasitism is a type of symbiotic relationship between organisms of different species in which one, the parasite, benefits from a prolonged, close association with the other, the host, which is harmed. In general, parasites are much smaller than their...

As Gross As It Gets How far would you go to survive? Consider a parasite--an organism that lives on or inside another organism, or "host." The lancet fluke, for example, is a leaf-shaped flatworm, and this deceptively simple-looking species--Dicrocoelium dendriticum [dye-KROW-sealy-um den-DRIT-ic-um]--has...

Expert takes on key questions about prevention and compliance for veterinarians Editor's Note: We bugged Dr. Mike Paul, executive director of the Companion Animal Parasite Council (CAPC) for his answers to five key questions about parasites, diagnostics and disease transmission. He delivered the...

A mushroom found embedded in a 100-million-year-old piece of amber is about 20 million years older than other known mushroom fossils, an Oregon scientist says.The ancient mushroom is especially interesting because it contains two parasites, one feeding on the mushroom and the other feeding on...

Acupuncture is perhaps the best known aspect of Traditional Chinese Medicine (TCM) in America. But an important branch of TCM is its highly developed approach to herbal medicine. While acupuncture is rightly famous for its effectiveness in treating pain and trauma, the primary focus...