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In 1984, she helped campaign to make the grey nurse shark the first protected shark species in the world.

The fate of the grey nurse shark on Australia's east coast illustrates the potential problem - a bloody spate of shark hunting in the 1970s led to it becoming critically endangered, its fierce appearance apparently contributing to its undeserved reputation for being a "maneater".

An artificial womb has been created for a relative of the grey nurse shark, but sharks’ placentation and how they grow in the womb is a bit less complicated than in humans.

The endangered grey nurse shark is a passive, gentle creature�but not until it is born.