Sharks should not be harvested for their fins. One part of the problem which I
do not understand is that their are a lot of impotent men of Oriental extraction who believe the soup works to improve their lives. The second part of the problem is that the sharks get a lot of bad press. You watch Shark Week on TV and what do you see. Not a perfect tooth smile that a dentist would be proud of saying she worked on, but a blood-smeared mouth as it surges at the camera with its multi-rows of teeth.
They need to get a better press agent possibly porpises or seals could help them to change their denizens of the deep image. Possibly they could work out a deal with some company to sell there secret for everlasting teeth so that people could have good teeth all the rest of their lives.