Leading sharkeologists David O'Doherty, Claudia O'Doherty and Mike Ahern bring you a hundred things you definitely didn't know about the oceans' most terrifying creatures.

For example:

* The great white shark hates jazz music;
* A group of hammerhead sharks is called 'a toolbelt';
* The reef shark can send intimidating telephone text messages with its mind;
* Dancing With the Sharks was Bulgarian TV's least successful ever television show;
* And the word 'shark' actually looks quite like a shark.

Your knowledge of sharks is about to get a hundred facts more knowledgeable.