African trypanosomiasis is spread by the tsetse fly, which leaves a painful, two to five-centimeter mark on the skin. A rash may also follow. After a period of time, sometimes years, the parasite ...

There are two types of human intestinal parasites, protozoa – single-celled organisms that can multiply inside the human body – and helminths, organisms such as tapeworms, roundworms and ...

These parasites, which include various types of protozoa and helminths (worms ... could contribute to the higher rates of infection among captive animals[2]. Research in Bangladesh focused ...

These nests typically have two or more species of ants in the ... There are three main types of social parasites that form mixed species ant nests: temporary social parasites, permanent inquilines ...

In other cases, parasites can kill their host. Perhaps the most gruesome type of parasite, parasitoids, kill their hosts in order to reproduce. The disturbing chest-bursting scene from the 1979 ...