Explores the legend of El Dorado which had Spanish conquistadors flocking to find the city with the hopes of finding gold, and presents archaeological evidence that parts of the legend may have been based in truth.
Most scientists agree that global warming is a serious threat, and that human beings contribute to it by burning carbon-containing fuels such... Læs mere
Traces the history of the exploration of western North America and the impact it had on the histories of both the United States and Canada. This title... Læs mere
Aims to introduce students to basic principles of forensic toxicology and the role of poisons in forensic science. This book emphasises on the common drugs... Læs mere
Traces the rise and fall of prehistoric species, includes discussion about the time-honored and often-challenged theories about the five biggest extinctions, and raises questions about whether we are heading toward another mass extinction.
Born Araminta Ross, Harriet Tubman was a former slave who became an abolitionist and a spy for the Union army during the Civil War. Tubman is most famous for rescuing more... Læs mere
A common viral infection, herpes, in its different forms, can produce cold sores and fever blisters on the mouth or genital sores. Although herpes cannot be cured, there are many treatment options available today to prevent its outbreaks and decrease its associated discomforts.