The skin ranges from dark gray to light gray. The Linnean System is a method of classifying organisms based on a simple hierarchical structure. The liver is a large internal organ in vertebrates that secretes bile, a digestive liquid. The large, oily livers of sharks give them buoyancy, since the oil is lighter than water. It is also less-common shark than the shortfin mako .
Makos can maintain a body temperature higher than that of the surrounding water.
This large-toothed shark is found in deep tropical and warm temperate oceans. This shark emits a green glow from its belly. The dorsal fin is small and closer to its tail than on most sharks. The large eyes have green pupils. It is harmless to humans and is rarely even seen by divers.