Crazy encounter with this porbeagle shark. These sharks are a species of mackerel shark with a gray topside and white underside, similar coloring to a great white. Porbeagle sharks look like a mix between a great white shark and a mako shark. The distinct way to tell if it is a porbeagle shark is the white blotch at the aft base of its first dorsal fin, and the two pairs of lateral keels on its tail. Porbeagle sharks are distributed widely in the cold and temperate marine waters of the North Atl