Manta and devil rays are some of the most intriguing creatures in the ocean. Driven forward by powerful beats of wing-like pectoral fins, these filter feeders search the waters for prey, their horn-like head fins giving rise to ancient mariners' tales of fearsome devilfish dragging boats into the ocean depths. Beloved by scuba divers and marine biologists alike, these impressive animals have never had a comprehensive field guide dedicated to them-until now. Guide to the Manta and Devil Rays of the World includes detailed information on the identification, characteristics, threats, and distribution for each species in this family. Illustrated with more than 200 color photos, drawings, and plates, this guide also contains an expansive introduction to the general taxonomy, biology, and behavior of these iconic animals. This book will be an essential resource for fisheries management and international trade enforcement, and for anyone involved in ongoing manta and devil ray research and conservation. The first dedicated field guide for manta and devil rays Exhaustive treatment of every aspect related to their identification and biology Filled with 200+ color drawings, photos, and diagrams

These poignant and relevant dialogues, held just a few months prior to the attacks of September 11, 2001, forcefully put to rest the misconception that the realms of science and spirituality are fundamentally at odds with one another. Questions such as "Why are rational and intelligent people often at the root of destructive behavior? "and "How can the emotions that produce violence be controlled?" are the basis of these dialogues between the Dalai Lama and a select group of Buddhists, Western psychologists, neuroscientists, and philosophers who gathered together to elucidate, understand, and combat destructive emotions. Estos dialogos relevantes y profundos que tuvieron lugar pocos meses antes de los atentados del 11 de septiembre, desacreditan la idea falsa de que la ciencia y la espiritualidad no pueden existir juntas. Preguntas como "Por que personas aparentemente racionales e inteligentes se portan destructivamente?" y "Como pueden controlar las emociones que conducen a impulsos violentos?" son los temas de este dialogo entre el Dalai Lama y un selecto grupo de eruditos budistas, psicologos occidentales, neurocientificos y filosofos, reunidos para dilucidar, comprender y combatir las emociones destructivas.