We've all heard of horse whisperers, but I bet you've never heard of a shark whisperer.
Cristina Zenato has a truly amazing connection with sharks. She has dedicated her life to ocean conservation - and has become an expert in sharks. She has an amazing ability to sooth sharks with the power of touch.
Far from stereotypical terrifying man-eaters, Cristina is out there to prove sharks are incredibly complex, fascinating beings that we should respect rather than fear.
This video shows her astonishing ability to calm these wild animals with her hands.
Word of warning: don't try touching wild animals yourself, if you go diving. Unless you are an expert, you don't know what harm you might be doing to this underwater creature, so it's best to keep mitts off.