This volume represents the first step to a serious study of what is known as the "Chupacabras"-i.e., --"the goat sucker", -- an unfortunate misnomer. It is a neat collection of data which consists of interviews of witnesses; some were obtained first-hand, while others were taken from numerous sources around the globe. This book aims to inform the readers of the investigations and events that took place in Miami in or around 1996 and in the Atacama Desert, in 2000. In these locations, hundreds of domestic animals such as chickens, ducks, doves, dogs, cats, goats, pigs, and even cows were attacked by an unidentified blood sucking predators. During the attacks on the animals, there were also UFOs sightings. In those instances there were also paranormal activities, such as sightings of strange birds, animals, humanoids, Bigfoot, spontaneous fires, poltergeists, men in black, suicides, and other incidents. In this volume, readers will also find physical evidence that we have secured such as footprints, hair samples, and results from a laboratory regarding a strange tooth that was found in a skull of an unknown creature. We hope all of the presented materials and the data from our field investigation will be a useful reference for others investigators.