1. Sharks are vital to the ocean food chain, and in keeping the overall population healthy with weeding out sick or injured animals. They are also key elements in maintaining the right ratio between species.
2. Sharks can also boost tourism. Ok, not in the Hollywood movies, but in real life shark diving is a growing industry.
3. Sharks are perfectly-engineered. Scientists study sharks for several reasons: for their efficient moving in the water, their skin, and even bacteria-resistant surfaces.
4. Sharks can help reduce carbon in seas by eating dead fish that collect on the seafloor.
+1. They are one of the earthlings, and part of the biodiversity. :)
We eliminated one of the points as it was about eating sharks, as in our opinion this is absolutely unacceptable.