The diamond dust has the same properties of larger diamonds, but the tiny diamond particles cannot be set into jewelry by themselves. It is carefully gathered after cutting, and comes to good purpose in many industries.
Larger sharks, including great whites, tiger sharks and whale sharks, travel more widely and have greater depth range in the water column. Great whites dive deeper than 1km and are seasonal visitors to temperate coastal waters, lured by the likelihood of a feed at seal and sea-lion rookeries and haul-out areas.
Sharks have five different kinds of fins. 1  Paired pectoral fins lift the shark as it swims. 2  Paired pelvic fins stabilize the shark. 3  One or two dorsal fins also stabilize the shark. In some species, dorsal fins have spines. 4  Not all sharks have an anal fin, but it. provides stability for the sharks that do have one.