Here Are the Latest Theories on Subjects That Have Intrigued and Puzzled Students and Scholars Alike While many of these subjects have been treated before in other series, our authors have unearthed new theories and information based on the latest scientific investigations of available evidence. Firsthand experience helps our authors provide new perspectives and theories on these occurrences that will keep your readers fascinated. Does Bigfoot really exist? Here is a collection of stories of sightings and even contact between human and creature, as well as some possible explanations and theories. The author once tried hunting Bigfoot himself!