would you open a lion reserve in the heart of jo hansburg?t's completely illogical. >> but now, the sharks are here. and la reunion's residents can do nothing else. should they just live with the danger? or should they strike back and kill the sharks? a short while ago, local authorities decided to cull 90 sharks. but officials were unwilling to give interviews on the subject. finally, after six hours of waiting, a silver colored patch is spotted in the water. it's a tiger shark. our underwater camera shows he's close to four meters long and weighs around 300 kilos. on his dor sell fin is a little yellow transmitter. the shark has already been tagged. >> it's tiger shark number 22. we've caught him already, so we'll let him go again. it's vital that he continues to deliver data as part of our scientific program. >> but before he lets the shark go, he jumps in the water. it's a terrifying site, but gasol says he does it each time. he doesn't know if the shark is watching, but he wants to show the animal that humans too have a place in the ocea