Unfortunately the rare times we hear about these elusive animals it's bad news. But what do we really know about them?

SACF, along with Monterey Bay Aquarium, has funded several satellite tags to enable shark scientists to continue piecing together the ecology of the elusive Great White shark.

The sharks, all juveniles between 1.2 - 1.8m, were tagged with satellite tags off Port Stephens.

Below is an image of the sharks' movements over the past couple of weeks. Wilfred is in mauve.