The tiger shark is a keystone species or apex species that thrives in warm waters. The extinction of these sharks would result in the spread of certain algae to the point in which they become an invasive species. It would also result in species of smaller populations going extinct due to a possible increase in the predators that would have been otherwise controlled by tiger sharks.
i watched some dumb funny video by Bill Wurtz and the atoms would get closer and closer together before they collided and created the world to be a barren ocean waste land.