Shortfin Mako (Isurus oxyrinchus)
One of the most active sharks, the shortfin mako leaps repeatedly when hooked and is, consequently, a popular quarry for shark fishers. The shortfin mako is involved in attacks on boats more frequently than any other species. It can reach 4 m (13 ft.) in length and weigh 500 kg (1100 lb.). It is found in all tropical and temperate ocean waters of the world.
Thresher Shark (Alopias vulpinus)
Thresher sharks are distinguished by the long upper lobe of the caudal fin, which can reach up to 3.3 m (11 ft.) in length. The shark will use this part of the fin to strike whip-like blows at its prey. The shark can grow to 7.6 m (25 ft.) in length and weigh 300 kg (660 lb.). It is found in all tropical and temperate ocean waters of the world.
Hammerheads (species in the genus Sphyrna)
The eyes of hammerhead sharks are located at the outer tips of the head. There are eight species of hammerheads. They can grow to 4.5 m (15 ft.) or more in length. They are found in all tropical and temperate ocean waters of the world.
Longfin Mako (Isurus paucus)
The longfin mako is perhaps the most beautiful of the sharks. The back is a deep blue, the underside a glittering white. It grows up to 3.6 m (12 ft.) in length and can weigh 455 kg (1000 lb.). It is found in all tropical and temperate ocean waters of the world.
Greenland Shark (Somniosus microcephalus)
A very lethargic creature, and one of the few sharks to inhabit polar waters year-round. Greenland sharks usually grow to 4.2 m (14 ft.) in length, although they can reach 6.3 m (21 ft.).
Great White Shark (Carcharodon carcharias)
The most dangerous of all the sharks. Great white sharks are very aggressive. They can reach at least 6 m (20 ft.) in length and weigh 3 t (3 tn.). They are found in tropical ocean waters, but mostly in temperate ones.