disposition in the Law topic by Longman Dictionary of Contemporary English | LDOCE | What you need to know about Law: words, phrases and expressions | Law English English English - Japanese English - Korean English - Spanish Japanese - English Spanish - English
â¢ Hammerhead Sharks. There are several species of hammerhead sharks, which are in the family Sphyrnidae. These species include the winghead, mallethead, scalloped hammerhead, scoophead, great hammerhead and bonnethead sharks. These sharks differ from other sharks, as they have very unique hammer-shaped heads.
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.