Today I have read a short tongan myth called 'The battle of the shark and the octopus'. In this story we meet a god known as 'Takuaka' who can turn into a anga (shark). He is a strong, valient, but jealous reef guardian, from fiji. He battles many others like him from everywhere. As he defeats yet another reef guardian, his friend tells him about a one he has not come across yet. Anga follows the reef and finds a reef guardian called feke (Octopus) and challenges him to a battle where he admits defeat and promises not to hurt anyone again.
