When we hear the word 'reef' we most often think of tropical coral reefs and, indeed, those are the most diverse habitats with thousands of different species living on them. But reefs can also be found off the coast of Canada, Brazil and even further north. Off Canada's coast there are both the Atlantic deep-water coral habitat and the Pacific rocky reef habitat. Reefs is a pictorial celebration of the hugely varied marine life on coral, rock and sand reefs all around the world. From the Great Barrier Reef off Queensland, Australia, to Mabul Island off Borneo, from east African coral reefs stretching from the Red Sea down to Madagascar to the Amazon Reef off Brazil, from the Mesoamerican Reef off Belize to Vancouver Island, the book explores how life on each reef is interdependent. The book also includes examples of how coral bleaching has killed off reefs. Arranged geographically by reef and illustrated with more than 200 colour photographs, each entry is completed with a caption explaining the magnificent natural world on display. From the gender-swapping clownfish to single-cell zooxanthellae, from coral polyps to purple starfish to harlequin shrimp and octopuses, the book is a feast of marine life.