Parasites that live in the body are called endoparasites. An example of an endoparasite is a hookworm that lives in the hosts gut. Parasites that live on the outside of the body are called ectoparasites. Epiparasite is a parasite that feeds off another parasite, this is called hyperparasitoidism. There are several different outcomes of parasitism. When a parasite lives with another organism, this can cause commensalism which is defined as two organisms that co-exist in the same space/area/location, and one of the organisms benefit from the other while neither harming nor helping the other organism.