There are hundreds of shark species the world over and some are bizarre in the extreme. Check out the super-long snout with detachable jaws mouth big enough to fit round a double bed extra-long saw with teeth on both sides cunning seaweed camouflage - this one doesn't look like a shark at all Meet the owners of these cool features and find out how they use them. Superb photographs and action-packed text take you down to the depths to view an array of fascinating but rarely seen creatures.