This is the only truly pocket-sized guide to the world's sharks and rays. There are over 800 species of sharks and rays in the world, and this gem describes over 200 of the most common species, including the Great White, hammerheads, sawfish and stingrays. / A general introduction describes the shark groups, the biology of sharks, their conservation, and information on shark attacks / Each species has its own entry. Entries include information on size, distribution, food, breeding and danger to humans / There is colour artwork for each species / Glossary of terms, and further reading Packed full of information, Collins Gem Sharks is the perfect introduction to these fascinating species.