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The tail of a shark consists of the caudal peduncle and the caudal fin, which provide the main source of thrust for the shark. Most sharks have heterocercal caudal fins, meaning that the backbone extends into the (usually longer) upper lobe. The shape of the caudal fin reflects the shark's lifestyle, and can be broadly divided into five categories:
The adipose fin is a soft, fleshy fin found on the back behind the dorsal fin and just forward of the caudal fin. It is absent in many fish families, but found in nine of the 31 euteleostean orders ( Percopsiformes , Myctophiformes , Aulopiformes , Stomiiformes , Salmoniformes , Osmeriformes , Characiformes , Siluriformes and Argentiniformes ...
The longfin mako is a pelagic species found in moderately deep water, having been reported to a depth of 220 m (720 ft). Growing to a maximum length of 4.3 m (14 ft), the slimmer build and long, broad pectoral fins of this shark suggest that it is a slower and less active swimmer than the shortfin mako. Longfin mako sharks are predators that ...
The dorsal fins also give the shark advantages. The first dorsal fin helps the spiny dogfish maintain a stable body position while swimming while the second aids in generating thrust. [ 18 ] The caudal fin is larger than normal, which helps the sharks maneuver through the water quickly and efficiently.
Brooke E. Flammang is an American biologist at the New Jersey Institute of Technology. [1] She specializes in functional morphology, biomechanics, and bioinspired technology of fishes. [2] Flammang is a discoverer of the radialis muscle in shark tails. She also studies the adhesive disc of the remora, and the walking cavefish, Cryptotora thamicola.
A small species usually under 1 m (3.3 ft) long, the epaulette shark has a slender body with a short head and broad, paddle-shaped paired fins. The caudal peduncle (to which the tail fin is attached) comprises over half the shark's length. Adults are light brown above, with scattered darker spots and indistinct saddles.
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