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 ...

Male fertility rates have been plummeting over the past half-century. An analysis from 1992 noted a steady decrease in sperm counts and quality since the 1940s. A more recent study found that male ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) I am a microbiologist, and my lab studies Toxoplasma. This new study bolsters emerging ...