Arno Karlen - Social Science - 1988 - 370 pages
This systematic study of sexual threesomes and of their attendant emotions, needs, and conflicts rests in twenty years of research and extensive interviews
Judith Herbst - Juvenile Nonfiction - 2013 - 77 pages
Since prehistoric times, people have wondered what causes disease. Early people blamed evil spirits. Later, disease was thought to be caused by an imbalance of bodily fluids ...
Robin Marantz Henig - Medical - 1993 - 269 pages
Examines the reasons people develop viral diseases, surveys current viral research, and discusses its implications for the AIDS epidemic and future viral diseases
Eddie Lunsford - Science - 2013
How many eyes does a spider have? How do you grow seedless plants? Could bacteria survive near nuclear reactors? Can you name animals that travel in coalitions, parliaments and ...