You’ll be in danger if something scratched your skin

I don’t want to make people fearing something after heard this words. Honesty, you’ll be in danger. Of course if you dive or swim in the wild open sea. You shouldn’t underestimate the sharks sensory. Because they can smell you for about 500 yards, or maybe you still can’t imagine how far it is. Let me help you, if you watch soccer just imagine the measurement of the field because the shark’s ability to smell is about five times of soccer field. Yap, I expect that you have understand now. Then, I want to tell you the smell sensory of shark. Is it because of two small holes on the front edge of shark’s body? if you think yes absolutely those holes help shark to find prey, you have to check it one more time. One super tool which used to detect blood in the water is called Aempulae of Lorenzini. It can detect one per million particles of blood in the water. So the best way to attract shark is scratching your skin until the blood comes out. Then wait until the first shark swim around you. After that let the shark get close to you and then kill you, just kidding. One best way is spill the fish’s blood into wild open sea, now you shouldn’t use your blood. Just wait, there gonna be big great white shark comes to you.