In 1913, an expedition was sent to the Arctic, funded by the American Museum of Natural History, the American Geographical Society and the University of Illinoi

A Dictionary of Hallucinations is designed to serve as a reference manual for neuroscientists, psychiatrists, psychiatric residents, psychologists, neurologists

Humans have a remarkable knack for surviving harsh environments. But how do people really endure the world's most remote and inhospitable landscapes, where natu

The fabled oasis in the desert mirage is just one example of the strange things that can happen when light hits the air in certain atmospheric conditions. This

Looks at how the climate has varied in the last 500 years