Dusky sharks, who are apparently fed by people and tour boat operators so they stick around the boats.

Witness testimonies suggest a shark reportedly lunged at his GoPro camera.

“The situation likely occurred via a process of juxtaposition bites, with two distinct motivations: the first, a (probably single) reflex/clumsiness bite driven by food begging, and the second, several predatory bites triggered by a feeding frenzy,” researchers explain.

“The central objective is to eliminate the begging behaviour in sharks, and this can only be achieved by establishing and enforcing a complete and total ban on all artificial feeding of sharks by the public,” scientists write.