... though bull sharks are not able to maintain an entire life cycle in fresh … This shark gets its name from the sharp triangular teeth that look like the tip of a spear. Eyes are small. Despite legal intervention, shark finning continues to plague shark populations because it is extremely lucrative for humans. The first dorsal fin is located on the top of a shark’s back and is used to stabilize the shark in the water. Origin of the first dorsal fin usually over or just behind the insertions of the pectoral fins. Bull sharks have a bite force up to 5,914 newtons (1,330 lbf), weight for weight the highest among all investigated cartilaginous fishes. Bull Shark Carcharhinus leucas Snout is blunt Stocky body 1st dorsal fin is rearward-sloping and originates over pectoral fins Fins on smaller sharks may be black-tipped 2 Lemon Shark Negaprion brevirostris Snout is blunt Dorsal fins … A single bowl of shark fin soup costs … The shark has large pectoral and dorsal fins as well as an elongated caudal fin. WRBL 3 News is reporting that according to un-confirmed reports a Columbus, Georgia fisherman and a runner spotted a shark fin in the Chattahoochee River. 2. 10. a) 1st dorsal fin originates over rear margin of pectoral fin; pectoral fin with slightly curved rear margin..... Dusky (p.23) b) 1st dorsal fin originates well behind rear margin of pectoral fin; 2nd dorsal fin has long free tip..... Silky (p.25) 11. According to the story, the fisherman broke his line while fishing and when the runner came to assist him, they both saw the shark fin, causing some to theorize that a bull shark … The second dorsal fin is much smaller than … The bull shark's caudal fin is longer and lower than that of the larger sharks, and it has a small snout, and lacks an interdorsal ridge. They are related to the great white and the tiger shark. They lack an interdorsal ridge. The fins of a young bull shark typically have dark tips, but they grow out of this awkward stage in adulthood. Bull Shark (Carcharhinus leucas) Bull shark is one of the most aggressive type of sharks. No interdorsal ridge. Sometimes sharks enter water so shallow that they can barely swim, and — as a result — their dorsal fins sometimes poke through the surface. First dorsal fin originates over or slightly behind pectoral insertion. The area between the two dorsal fins can either be flat, or have a small, raised ridge of skin -- this is the interdorsal ridge. Sharks can be lured to the surface with floating bait and, in investigating such hand-outs, sometimes their dorsal fins break the surface of the water. First dorsal fin large and broadly triangular to somewhat falcate. 3. Coloration: Pale to dark grey. Lined with strong, flexible dorsal fibers, the first dorsal fin keeps a shark from rolling on it’s back and helps it make sharp turns while swimming fast. The first dorsal fin is large and … Distinctive Features Bull sharks are very stout-bodied and have a blunt, rounded snout. Snout is much shorter than width of mouth and bluntly rounded. The second dorsal fin is smaller than the first. These rare sharks grow up to 8.5 ft. (2.6 m) long. Fin tips are dusky, but not strikingly marked. Second Dorsal Fin. Larger species of sharks, like bull sharks, are most commonly exploited for their dorsal fins to make shark fin soup, which is considered a delicacy in some cultures. Bull sharks are aggressive and considered one of the most dangerous types of sharks because they are not unlikely to attack humans. 4. Biology. The bull shark has a second dorsal fin farther back and much smaller than the first.