The lemon shark is a species of shark found in warm, shallow ocean waters all over the world. X-Ray Fish. The growth rate of the lemon shark is 0. Useful training for this site Aware Shark Conservation Diver, PADI Open Water Diver, PADI Advanced Open. It can be found in deeper water depths ranging from 230 to 300 feet. The great hammerhead is the largest of the nine identified species of this shark. The white shark is born at approximately 4 feet long and can grow up to about 20 feet long, weighing over 4,000 pounds. Shark Physical Characteristics. ”. The Lemon Shork is a shark-like gootraxian with a light yellow body and a cream underbelly. 5 m). Sharks, like other fish, possess gills in order to breathe underwater. The trip there takes a full day. Negaprion teeth are smaller than those of adult. American Ocean's is a resource for marine animal facts and information about the world's. This article was most recently revised and updated byN. While mostly easy going, lemon sharks can act upon bursts of. Sevengill – has seven gill slits; no similar species. 5 ft (5. Interdorsal ridge. In Cuba, shark essential habitat is largely undocumented. Lemon Shark Characteristics. mouth large with long upper labial furrows, each extending from the jaw corner forward to level of the eye. Lemon Shark. Whether you're a parent looking for a fun and educational resource for your child, or. It. The shark’s skin consists of a collection of scales that act as an outer skeleton for the fish species. Here are 13 interesting facts about your new favorite shark! 1. With increased demand and exploitation rates for some shark species and shark products, concern has steadily grown regarding the status of many shark stocks and their exploitation in global fisheries. Put the shells and sand into a sifter and shake it. Ginglymostoma cirratum. If you don't know, let it go. Lemon sharks can be found in warm, shallow waters around the world. Search or sort the list by scientific name, common name, or family below. 1. As mentioned, this species of shark has a head that is wide like the head of a hammer and then a long handle as it goes back to the rest of the body. 2006). The berry is high in miraculin, a type of glycoprotein, which is a protein with sugar molecules attached. Until recently, it was thought to be a junior synonym of the whitecheek shark (C. Second dorsal fin with free tip length rarely more than twice fin height. It’s not a waterlogged herd of unicorns—it’s a pod of narwhals! This species of whale is best known for its tusk—a long, spiraled tooth that usually only the males develop. The species is primarily found in the cold-water environments of the Arctic Ocean and North Atlantic, from Baffin Bay eastward to the. 2. (Carpenter, 2010) Positive Impacts; food; body parts are source of valuable material The trait’s characteristics have enabled researchers and scientists to study lemon sharks in greater detail than almost any other shark species. Besides that, other common sharks seen include the nurse shark, the tiger shark, and certain hammerhead and reef sharks. Silvertip Reef Shark. The Cookiecutter Shark, also referred to as the cigar shark, is a fascinating creature with unique biological features and a penchant for large prey. A lemon shark has a territorial area of 3300. The lemon (Citrus × limon) is a species of small evergreen tree in the flowering plant family Rutaceae, native to Asia, primarily Northeast India (), Northern Myanmar, or China. 4-3 m with a maximum of 3. Working with others to conserve, protect and enhance fish, wildlife, plants and their habitats for the continuing benefit of the American people. 1) Great white sharks can be found throughout the world’s oceans, mostly in cool waters close to the coast. This allows for sharks and rays to swim quickly and for long distances while requiring less energy due to their lighter body plan. Characteristics. The Shark's World 1996 Lynn M. It’s hard to see in the murky waters of the deep, but sharks have excellent vision. Like the Red Tail Shark, the Rainbow Sharks have a fiery red tail that stands out against a natural backdrop. Size. Sharks inhabit all the waters of the world. Vitamin C is an antioxidant, which helps protect cells from damage. Some bottom-dwelling sharks such as. Sharks whip their prey around back and forth in order to break off large chunks of meat. This will slowly change the water chemistry of the shipping container and make it closer to the tank water. New Zealand Discount Flowers. Bigeye Threshers are normally the largest with Pelagic Threshers being the smallest. The tiger shark is one of the requiem sharks, renowned as formidable predators with powerful jaws and razor-sharp teeth. Though both sharks and rays use gill slits to breath underwater, they tend to breath differently. Understanding these seasonal changes can provide valuable insights into the behavior and feeding habits of these fascinating creatures. A comprehensive A-Z list of all the animals archived on Animal Corner. Some bottom-dwelling sharks such as. Oceanic Whitetip Sharks Are Blamed For Hundreds Of Shipwreck Deaths. The remainder are oviparous, meaning they lay eggs. Their fossilized teeth are some of the most abundant in the world, which has led to numerous collectors misidentifying them as other extant species of shark. The hammerhead shark’s cephalofoil serves many purposes. Cheetah Lion vs. On average, they grow to around 4. The great white shark is the largest predatory shark on Earth. Size and Weight. Usually, lemon sharks grow to between 8 and 10 ft. Field Key to Sharks Encountered in the U. Greenland shark, (Somniosus microcephalus), member of the sleeper shark family Somniosidae (order Squaliformes, which also includes the dogfish family, Squalidae) that is the longest-living vertebrate known. (Tiger Shark, B; Lemon Shark, C; Great White Shark, A; Whale Shark, D) Ask: What tools can you compare each tooth to? For example, tooth A resembles a saw. But research shows there's a yellow-hued giant — the lemon shark ( Negaprion brevirostris) — who isn't a fan of aggression and seems to have quite the social life. The pups stay at their nursing grounds with their litters (which can range from 4 to 17 members) for years before growing to their adult sizes. Carpet sharks are sharks classified in the order Orectolobiformes / ɒ r ɛ k ˈ t ɒ l ə b ɪ f ɔːr m iː z /. Some scientists attribute it to the French word for “rest (death)” which may refer to their impressive hunting skills. This varies, of course, among different species of sharks and the chemical in question. These cartilaginous. Little Skate Characteristics and Information. This article was originally published on March 28, 2023. 61 to 0. Mating occurs from summer to fall. Carcharhinus is the type genus of the family Carcharhinidae, the requiem sharks. Each of these species is a part of a healthy, balanced ecosystem in the wild Monterey Bay. With questions about various types of sharks and their characteristics, the quiz provides a fun way for kids to test their knowledge and see just how much they have learned from the book. Although they only grow to about 1. Scientific Name: Pristiophoriformes Common Names: Saw shark, sawshark Basic Animal Group: Fish Size: 28-54 inches Weight: 18. Remora front dorsal fins have evolved to enable them to adhere by suction to smooth surfaces, and they spend most of their lives clinging to a host animal such as a whale, turtle, shark or ray. Bonnethead shark has a shovel-shaped head; grows to about 5 ft (1. Sharks have tiny holes all over the shark's snout, especially between the eye and the tip of the snout. Amphibians Birds Habitat Profiles Mammals ReptilesThe earliest fossil evidence for sharks or their ancestors are a few scales dating to 450 million years ago, during the Late Ordovician Period. Illustration courtesy FAO, Species Identification and Biodata. Shark Facts: Habitat, Behavior, Diet. The common name for the lemon shark comes from its pale yellow-brown coloring. 1 meters) long. The first dorsal fin originates. The Northern River Shark, is the largest freshwater shark, and grows to 8. , 73%), Hammerhead sharks (Sphyrna spp. In 2022, commercial landings of Atlantic common thresher shark totaled 51,000 pounds and were valued at $40,000, according to the NOAA Fisheries commercial fishing landings database . The bull shark is one of only a few shark species also capable of living and breeding in freshwater environments. Lemon balm might help reduce anxiety, according to a small pilot study. 05 Sharks have the thickest. Male sharks dominate female sharks by biting the female in the pectoral fin and pushing her nose downward. A short description of the genus Citrus is followed by information on the chemical composition, metabolomic studies and biological activities of. The longest great hammerhead shark ever recorded was 20 feet (6. There are more than 400 shark species in the ocean, but they all have the same basic anatomy. The American crocodile ( Crocodylus acutus) is a species of crocodilian found in the Neotropics. Sand Tiger Shark. The requiem shark, a member of the Carcharhinidae family, is one of the most diverse and widely distributed groups of sharks in the world. Sometimes the common name "carpet shark" (named so because many species resemble ornately patterned carpets) is used interchangeably with "wobbegong", which is the common name of sharks in the family Orectolobidae. Facts about Lemon Sharks. They often travel near the mouths of rivers and sounds. Geographic Range. They can live in saltwater, freshwater, and brackish water. Salmon Sharks. The dermal denticles of a lemon shark, viewed through a scanning electron microscope. By: Gabe Buckley Reviewed by: BD Editors Last Updated: July 18, 2020 A Lemon Shark The Basics The lemon shark is a medium-sized shark species that is native to the western coast of Africa, as well. Fish-men are one of two humanoid races that inhabit and rule the seas (the other being the merfolk). Scientific Name. Fishing Lines. Salmon Sharks also have endothermic. It is found in the Indo-West Pacific, including the Red Sea, from southeast Africa to the Philippines, north to China, and south to Australia, at depths from 1 to 130 meters. Scientists know a ton about the biology of lemon sharks–they are easy to capture. 3 ft. Find out its characteristics, appearance, lifespan, reproduction, habitat, diet, and threats. Their night vision is better than a cat’s or a wolf’s. . The nurse shark's mouth has a puckered appearance and opens much like a hinged box. (Females occasionally do. Pangasius Fish profile. Brian Waddill, 34, was nabbed pounding a lemon shark, a protected species, with a hammer at Bicentennial Beach Park in Indian Harbor in December — and was later charged with failure to return a. NOAA Fisheries is. The most common shark found as a fossil in Florida with a smooth-edged (non-serrated) tooth crown is the lemon shark, genus Negaprion. Both are streamlined and have pointed snouts, crescent-shaped tails, and long slender teeth. Lemon shark commonly attain a length of 7. Flatfish – While their shape isn’t quite so drastically. However, these fish also have bright red fins. 1. 2 m) and weight of 350 pounds (159 kg). The tiger shark gets its name from the characteristic vertical bars that cover the sides of its body. These huge sharks are characterized by their broad and flattened heads as well as the unique “checkerboard” color pattern on their sides and back of light spots and stripes on a dark shade of gray, blue and brown. Where Do Basking Sharks Go in the Winter? Winter Skate. It has a flattened head with a short, broad snout and the second dorsal fin is almost as large as the first. Blacktip Shark pups grow quickly and can reach 6 feet. Decide whether the statement in the first box (1a) or the the second box (1b) best describes the characteristics of the shark you are trying to identify. Pass Recovering America’s Wildlife Act. Sharks can go through 30,000 teeth over a lifetime. When a surfer paddles out to catch a wave, their silhouette creates an image of a shark swimming below. Most sharks have a muscular, asymmetrical, upturned tail; pointed fins; a pointed snout; and sharp triangular teeth. Further research proved later that they are ovoviviparus, meaning that even. In between there are hundreds of large and small sharks with various shapes and with a multitude of important ecological roles in the ocean. Animals. On the east coast of the United States, they can be found from the Chesapeake Bay south through the Gulf of Mexico and further. A lemon shark measured around 12 feet (5. Divers photograph the animal right above their pectoral fins and behind their gill slits. Their pups tend to fall prey, however, to other sharks. 5 to 9 feet in length and 165 to 230 pounds, are slightly larger than. 3. This lemon shark has remora fish attached to its body. Females are larger than males, averaging 2. We would like to show you a description here but the site won’t allow us. The Whale Shark is a filter feeder, one of only three known filter feeding shark species, the other two being the basking shark and the megamouth shark. Shark TLC! Hand-Feeding The Sevengill Sharks With Aquarist Ann!Their characteristics include five (5) gill slits, moveable eyelids which protect their eyes from injury, two (2) spineless dorsal fins, an anal fin, and a wide mouth filled with sharp teeth located behind the eyes. Subscribe: most massive unconfirmed tiger shark was over 24 feet, but that value exceeds any other specimen and requires verification to accept as fact. Tiger Snail vs. This shark’s stocky build and other physical features make it a powerful predator underwater, but it is also a common target of commercial fishers looking to sell and trade the shark. 2) These super swimmers are the largest predatory fish (fish that eat other fish or animals) on our planet. Thynnus canadensis ( Gronow, 1854) The cobia ( Rachycentron canadum) ( / ˈkoʊbiə /, KOH-bee-ə) is a species of carangiform marine fish, the only extant representative of the genus Rachycentron and the family. Some large shark species, such as the tiger shark, the dusky shark, the great white shark and the bull shark, prey on the bottlenose dolphin, especially calves. On an individual approximately 16 feet in length. In Cuba, shark essential habitat is largely undocumented. Its large mouth is well adapted to filter feeding and contains more than 300 rows of small, pointed teeth in each. Overview. Small white spots cover the upper body. Its belly is off-white. 4. However, it is the smallest of the three species of filter-feeding sharks, behind the whale shark and the basking shark. They belong to the superorder Selachimorpha, and modern sharks have specific characteristics like a cartilaginous skeleton, five or six pairs of gills and several rows of teeth. There are over 500 species of shark living in waters around the world and the majority give birth to live young. Sharks have a streamlined body shape that glides smoothly through the water and contains five to seven gill slits which they use to respire. However, they have been found at depths of 984 feet. Whale sharks are. 4 to 3. Here, we will explore the key points regarding the seasonal changes in the lemon shark diet. Healow App available on. Fresh Cut Flowers from $24. Great hammerhead attains larger maximum size (18. The entire body is covered by an exoskeleton of placoid scales. Originally created in Orange County, this indica marijuana. 4m) and a weight of up to 190 to 220lbs (85-100kg) at adulthood. 6m long, but some great whites have been measured at 6m – that’s. Eugenie Clark, discovered that sharks can recognize colors, shapes, learn to perform behaviors. Lemon sharks are sexually. If one of the front teeth falls out when feeding then a tooth from the back row moves forward. List of the Different Types of Sharks in the Bahamas. Juvenile lemon sharks were visually located by anglers standing in a small boat or wading in the shallow water (<1. Yellow-eyed Penguin. Ask students to examine the teeth for features that help capture and eat a particular kind of food, and then match each tooth to a shark and its food. One of the primary threats to lemon sharks is overfishing. This is one of the largest known species of shark. This shape allows them to have excellent sensory receptors, to easily manipulate their prey, and for them to. Calcite in the form of oolitic limestone from Bedford, Indiana. Lemons contain about 50 milligrams of vitamin C, which is over half the amount of vitamin C needed in your daily diet. Their teeth are generally about 0. We are proud to be home to a dozen local species of sharks, skates and rays. Unique Body Shape of Lemon Sharks. The most likely theory though is that the name comes from the Old English word for sea-floor shark: hurse. NET aim to promote interest in nature and animals among children, as well as raise their awareness in conservation and environmental protection. Its snout is rounded, set between two large eyes, and equally as slim as its body but broader than its mouth. Lemon shark meat has been marketed fresh, salted or frozen and their fins, in particular, are prized among Asian cultures for use in shark-fin soup. This works as an outer skeleton, providing attachment for their swimming muscles and thus saving energy. Teeth-generating Machines. Size: 8 inches to 65 feet. Sharks have a cartilaginous skeleton. Bats can eat up to 1,200 mosquitoes an hour. Sharks can move both their lower and upper jaws. Realistically, almost any shark in the right size. Lemon sharks areIntroducing Requiem Sharks. Browse and search our list of species profiles of sharks. The white shark has a diverse and opportunistic diet of fish, invertebrates, and marine mammals. Distribution of Lemon Sharks. They Are Highly Endangered. It is one of the most abundant. Having earned their name after a group of fishermen reportedly observed the species chasing down smaller fish in dog-like. Type: Fish. 5 ft (5. (See this page on shark anatomy if you need help. 4 meters compared to 2. It is the second largest predatory shark after the great white shark, measuring over 5m (16ft) in length and. hammerhead shark, (family Sphyrnidae), any of 10 shark species belonging to the genera Sphyrna (9 species) and Eusphyrna (1 species), which are characterized by a flattened hammer- or shovel-shaped head, or cephalofoil. Recognizable by the distinct yellow hue of its skin, the lemon shark occupies coral keys and mangrove forests along the Atlantic Ocean and parts of the Pacific. It has a long, pointed snout and a large dorsal fin. [1] Here are 12 fun facts about catsharks that you may not know. Around 40 to 50 different shark species live permanently in or regularly visit the waters surrounding Britain. Bull Mar Sci 17:741–768. The blue shark is one of the most wide-ranging shark spe cies, and. The trunk and tail are laterally compressed, while the head region is dorsoventrally compressed. 5 kg test line) was used to cast a small piece of bait (Atlantic bonito, Sarda sarda) near the shark. Lemon Sharks are quite the sight. Nurse shark attacks are somewhat rare, but they do occur from time to time. Read these thrilling shark facts and become an expert on the most formidable creature of the ocean. Great hammerhead attains larger maximum size (18. A Lemon’s Life – mangroves and underwater winner A juvenile lemon shark in shallow mangrove forests in the Bahamas. 6 to 3 meters (5 to 10 feet) in length, these sharks are the apex predators on the very. Understanding the shark anatomy will give you a glimpse of the evolutive. Lemon sharks spend a lot of time in the sand looking for their prey, including fish, rays and crustaceans. Shortfin mako sharks grow slowly, reach up to 13 feet long, and can live to be over 30 years old. The whale shark forages for food at or near the surface of the ocean. slit-like spiracle behind eye. The Northern River Shark, unlike the Ganges Shark does not spend its whole life in freshwater. Interesting Facts. Their teeth are highly adapted for crushing the shells of their prey. The and porbeagle sharks also exhibit a blue coloration, but it is not nearly as brilliant as that of a blue shark. 4 m tiger shark. Also, lateral keels extend in the precaudal pit. 10980 Get Directions. For a type of requiem shark, they are at the larger end of the scale. They’re forcing us to rethink how we see big sharks, says Helen Scales. org. First and second dorsal fins are triangular and close to the same size 2. The blacktip reef shark (Carcharhinus melanopterus) is a species of requiem shark, in the family Carcharhinidae, which can be easily identified by the prominent black tips on its fins (especially on the first dorsal fin and its caudal fin). The two have a mutualistic symbiotic relationship. Therefore, sharks can come in a wide variety of sizes, and they don’t all look like. Lemon sharks are usually eight to ten feet long. Growing up to 40 feet long, or the size of a school bus, the whale shark is the largest fish in the world. The culturally celebrated but controversial soup is found widely in Asia and will. Their mother may see them only as prey. Read on to learn about the. We've commonly heard that this is why sharks attack humans. Bull sharks can be hard to identify, but they do have these identifying characteristics that set them apart from other sharks. The sand tiger shark lives worldwide near the seafloor in surf zones, shallow bays and coral and rocky reefs. In fact, it can reach speeds of at least 31 MPH. Vitamin C. The megamouth shark is a rare shark and a large species, reaching weights of 2700 pounds (1215 kg). long, while females can grow up to 5. Great white shark mothers give birth to up to 17 pups at a. And, much like shark eggs, predation presents a major risk to. Atlantic Bottom Longline Shark Fishery and by Recreational Anglers How to Use this Key: Start with the first question. History - Negaprion Eurybathrodon was a species of lemon shark that swam the oceans globally from the Late Eocene to the Pilocene some 2. In the wild, Angel Sharks can live between 25 and 35 years old. Let us figure out who the predators of lemon sharks are. Requiem sharks are sharks of the family Carcharhinidae in the order Carcharhiniformes. 3 grams of lemon balm extract reduced stress and improved mood in a group of 25 healthy young adults compared to a drink with no active substance in it ( placebo ). They have a lifespan of up to 30 years. Female nurse sharks, averaging 7. The study found that consuming a sweetened water-based drink containing 0. 10. Adult lemon sharks range in length from 8 to 10 feet, but they are not considered a threat to humans. Our prices are 50% less then competition. These help to protect and provide for offspring as they develop. 8 m) and weights of at least 1200 pounds (545 kg). 1. Atlantic blacktip sharks are gray to gray-brown, with white on the belly and a conspicuous wedge-shaped band or Z-shaped line on the sides. 95. See The Lemon shark is a shark that gets its name from its deep yellow back. Other traits that they share include filter-feeding frenzies; whales mostly eat krill, while Whale Sharks eat krill and other plankton as well as fish eggs and small fishes. New fossils from the MOTH fauna in northern Canada included taxa with acanthodian characteristics such as these fin spines but with scales that were more. The grey reef shark (Carcharhinus amblyrhynchos, sometimes misspelled amblyrhynchus or amblyrhinchos) is a species of requiem shark, in the family Carcharhinidae. Most fishers. 6 tons. Instead of bones, the skeleton of sharks is composed of cartilage, a flexible, robust and less dense substance. acutidens. Lemon sharks are found in warm and shallow waters, particularly in the western Atlantic Ocean. Recent research has confirmed just how observant sharks truly are. The Port Jackson shark (Heterodontus portusjacksoni) is a nocturnal, oviparous (egg laying) type of bullhead shark of the family Heterodontidae, found in the coastal region of southern Australia, including the waters off Port Jackson. Credit: NOAA Fisheries. Finger’s species of choice is the lemon shark, and with good reason. They have two spines along their backs that contain mild venom, and they use these spines to protect themselves from predators. Similar Species: Lemon shark, N. Hammerheads have small mouths in proportion to their heads. Shark Series: The Lemon Shark. 5 meters) and weigh about 77 pounds (35 kilograms). Sharks even have allies from a group of people who you would least expect - shark attack survivors are banding together in order to urge people to protect. Lemon sharks can grow up to 10 feet (3 meters) in length and can weigh up to 550 pounds (250 kg). The tiger shark is found throughout the world's coastal temperate and tropical waters, with. Hammerhead shark. A Shark Week Montage Of Sharky Sharks. In terms of leadership, Fisher Tiger, Jinbe, and Arlong were said to have the highest respect amongst their people. carcharhinid, any member of the shark family Carcharhinidae, which includes about 12 genera and 50 species found worldwide. Shark Behavior. Lemon sharks have a. Reproduction Elasmobranch (sharks, rays, and skates) life history patterns are commonly characterized by slow growth, long life, large adult size, late sexual maturity, annual or biennial reproduction, long gestation period, reduced fecundity, and well-developed, highly mobile offspring. Lemons contain very little fat and protein. To give you an idea of just how large they are, Greenland sharks usually grow up to 21 feet (6. (See this page for pictures and a glossary of shark tooth terms if you need. S. Stone Briefly describes where some species of sharks live and how they catch their food. Flattened spade-shaped head b. They both live for quite a long time; sharks can live to be 50 and even 100 years old, while whales can live 60 to one-hundred years. An adult can measure between 3. The lemon shark (Negaprion. p23 They can sense electricity in the water. Among all extant sharks, the average tiger shark is only smaller than the whale shark, basking shark, and great white shark. The lemon shark (Negaprion brevirostris) can replace a tooth in about eight days. A great white shark can detect a drop of blood in 100 liters of water even if the shark is three miles away. A Shark Week Montage Of Sharky Sharks. Subscribe: National Geographi. This slow-moving migratory shark is the second largest fish, growing as long as 40 feet and weighing over 5 tons. They consist mainly of carbs (10%) and water (88–89%). They are several different shades of gray and have a white underside. Sharks have the thickest skin of any animal species. 5 m. The 8 Main Animal Characteristics. Body Color: The dorsal side is evenly greyish-brown, while the ventral side has a lighter coloration. Physical Characteristics The lemon shark gets its name from its yellow to brown dorsal color, which helps camouflage the fish over a sandy seabed. Lemon shark facts!Facebook: whale shark is one of three large filter-feeding sharks; the others are the megamouth shark (Megachasma pelagios) and the basking shark (Cetorhinus maximus). Today, living sharks are grouped into nine orders: The ground sharks ( Carcharhiniformes. The bottom teeth of a dusky shark are sharp and pointy similar to bull sharks, lemon sharks, and blacktip sharks. Sharks can detect electrical impulses, including another animal’s beating heart. 2-3. 04. We've learned so much about the world's oceans, but there is still a lot to explore. At birth the baby shark is already about 5 feet (1. Spinner Shark. 4-3 meters) in length and weigh up to 500 pounds (227 kg) at maturity. Lethal Bite. Narrowness and a long crown are the most salient features of sand. The dusky shark ( Carcharhinus obscurus) is a species of requiem shark, in the family Carcharhinidae, occurring in tropical and warm-temperate continental seas worldwide. However, some individuals have been known to grow larger than this,. Diet. They have long, sharp teeth for catching slippery fish. You can find these sharks in shallow marine. Size data will be recorded in both fractions of an inch and mm. 4-3 meters) in length and weigh up to 500 pounds (227 kg) at maturity. The Goblin Shark tends to live at 890-3,150 ft (270-960 m) along the upper continental slope and in deep sea canyons. Requiem Sharks are a family of sharks of the order Carcharhiniformes, which is the largest order of sharks containing 260 unique species. 5 meters), and they weigh approximately 2,000 lbs (900 kilos)! These usually sluggish sharks have very unique physical characteristics including their varying coloration, interesting fins, and dissimilar teeth. Serack.