He found his first shark tooth as a small boy, in the late seventies, at nearby Venice Beach.

NEWYORKER: Bones of Contention

Any prey lurking below, typically a small fish called Mueller's pearlside, will not see the shark coming.

BBC: Glowing shark scares off predators with 'lightsabers'

Although the shark-watching industry at Ningaloo is small, and less than a decade old, it is profitable.

ECONOMIST: Whale sharks