Sharks are some of the most misunderstood animals on the planet. We still have a lot to learn about these fascinating creatures, which are more seriously threatened with extinction and in greater need of conservation and management than any other major group of vertebrates. A Pocket Guide to Sharks of the World is the first field guide to identify, illustrate, and describe the world's 501 shark species. Its compact format makes it handy for many situations, including recognizing living species, fishery catches, or parts sold at markets. The book also contains useful sections on identifying shark teeth and the shark fins most commonly encountered in the fin trade. A Pocket Guide to Sharks of the World is an essential resource for fisheries management, international trade regulation, and shark conservation. * The first pocket guide to all 501 shark species* Each species is illustrated and described* Handy, compact format with concise text* A six-page guide to the identification of shark teeth* An eight-page guide to the identification of shark fins

Manta and devil rays are some of the most charismatic creatures in the ocean. Born into a life of perpetual motion, these rays must keep swimming to survive. Driven forward by powerful beats of their wing-like pectoral fins, these filter feeding rays search the ocean currents for prey, their horn-like cephalic (head) fins giving rise to ancient mariners' tales of fearsome devilfish dragging boats into the 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 of the species within this family of rays. Illustrated with over 200 beautiful colour photos, drawings and plates, this guide also contains an expansive introduction packed full of useful information on the general taxonomy, biology and behaviour of these iconic animals.
This book will be an invaluable field companion for any scientist, diver or marine enthusiast who has an interest in these fascinating creatures. It is an essential resource for fisheries management, international trade enforcement, and for anyone wanting to become involved in the ongoing efforts to research and conserve this threatened family of rays.