Worms are easy to underestimate because most of them look defenseless, slow, and simple. But across the natural world, “worm” isn’t one group - it’s a body shape that shows up in many different ...

Three types of parasites can cause disease in humans. They are protozoa, carried by mosquitos, helminths, such as roundworm, and ectoparasites, for instance lice and bed bugs. Parasites are organisms ...

Parasites are organisms that feed off their hosts for survival. Such parasitic creatures can cause mild to serious symptoms and, in some cases, fatal infections in their hosts. “Overall, parasites ...