She induces the 'tonic' state in the
shark using a little-known technique of rubbing the ampullae of
Lorenzini - the name given to hundreds of jelly-filled pores around the
animal's nose and mouth.
A 'tonic' state is where a shark enters a natural state of paralysis, often by being turned upside down, for up to 15 minutes.
The pores act as electroreceptors detecting prey moving in the electromagnetic field around the shark - but also for some reason rubbing them turns 'Jaws' into a sleeping baby.
Ms Zenato uses her ability to put the sharks in a sleepy state to educate other divers, remove parasites and even take fishing hooks caught in their mouths out.
Photographer Matthew Meier, from San Diego, U.S., captured the moment she brought a Caribbean Reef shark under control.
The 42-year-old said: 'My first time to witness Cristina feeding the sharks was amazing. I expected an adrenaline rush, but the dive was so peaceful and calm. Full Read
A 'tonic' state is where a shark enters a natural state of paralysis, often by being turned upside down, for up to 15 minutes.
The pores act as electroreceptors detecting prey moving in the electromagnetic field around the shark - but also for some reason rubbing them turns 'Jaws' into a sleeping baby.
Ms Zenato uses her ability to put the sharks in a sleepy state to educate other divers, remove parasites and even take fishing hooks caught in their mouths out.
Photographer Matthew Meier, from San Diego, U.S., captured the moment she brought a Caribbean Reef shark under control.
The 42-year-old said: 'My first time to witness Cristina feeding the sharks was amazing. I expected an adrenaline rush, but the dive was so peaceful and calm. Full Read
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