Researchers have found new evidence to suggest that female disgust caused humans to evolve less hair. Women who rated themselves higher on measures of disgust appeared to prefer pictures of ...

Over 1,400 species of parasites – viruses, bacteria, fungi, intestinal worms and protozoa – are able to infect humans. In most cases, the right medicine against a parasite cures the patient. If he or ...

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 ...