North American watersnakes

"North American Watersnakes is the first comprehensive study of all fourteen species of watersnakes found in the United States, Canada, Mexico, and Cuba." "In addition to summarizing existing literature on watersnakes, the authors recount their personal experiences with various species. They provide tips on locating, observing, and catching watersnakes, comment upon the care of individual species in captivity, and outline the techniques used to study watersnakes. They also reveal that a number of ecological mysteries involving watersnakes remain unanswered."--Jacket.