Shark: Mighty creatures of the deep in action!

Chances are when you think of sharks, it's the great white or hammerhead that swim into view. But, there are over 400 species swimming in the oceans today. And, some are very bizarre with super-long snouts or detachable jaws. They are powerful, super-eating machines. Imagine a dark, triangular fin slicing through water – terrifying to humans. But, they are much more than this. So, check out…

•. a shark that has a mouth big enough to fit round a double bed

• . the special features and tactic...