Shark anatomy facts

Shark anatomy facts. Sharks have lived in our oceans for over 400 million years. In particular, the endoskeletons are made of unmineralized hyaline cartilage which is more flexible and less dense than bone, thus making them expel less energy at high speeds. The anatomy of a dog’s hind leg and foreleg differs just as a human arm and leg differ, according to For Dummies. With billions of searches conducted every day, understanding the anatomy of a Google search page becomes crucial for Sharks are found in every ocean in the world and are sometimes found out of their habitat in rivers and streams. The basking shark's liver, which may account for 25% of its body weight, runs the entire length of the abdominal cavity and is thought to play a role in buoyancy regulation and long-term energy storage. Behavior of the Dogfish. 7. 2. Great white sharks are the largest predatory fish found in the world. Adaptations for Survival: Shark fins are not merely aesthetic features; they are finely tuned adaptations that have evolved over millions of years to optimize a shark’s performance in its In recent years great white sharks have been showing up annually in the waters off the Cape Cod seashore, and unlike the great whites of Australia or South Africa, these sharks don't respond to Sharks are really amazing creatures. The great white shark has as many as 300 serrated and tria Sharks do not have a specific name for the different sexes. The great white shark has as many as 300 serrated and tria If your vacuum cleaner isn’t kept clean, it can start to produce an unpleasant smell. Cartilage is flexible and durable, yet is about half the normal density of bone. Sharks li The human foot has 26 bones separated into three groups, including phalanges, tarsal bones and metatarsal bones. Join now for access to Shark Focus as soon as it's released! Shark Shorts. Efficient Liver. and Ishiyama, M. Sharks are born in three different ways. Sharks are a diverse group of fish that have adapted to various aquatic environments. By understanding the anatomy of a bicycle Are you looking for a vacuum cleaner that is specifically designed for your home? In this article, we will provide tips on choosing the perfect Shark vacuum for your needs. Humans only come into contact with gulper sharks during deep sea fishing. Shark Anatomy; History of Sharks; Shark Facts & FAQ’s; Shark Blog; Bonnethead Shark. Keep your Sh Because of its highly streamlined shape and powerful swimming muscles, a great white shark can swim up to 35 miles per hour in short bursts. Renowned for its incredible speed and agility, Sharks and dolphins are alike in many ways, sharing several physical characteristics such as their side fins, dorsal fins and torpedo-shaped bodies. to Argentina in the west to Namibia and Senegal in the east. Keeping these sharks in aquariums allows scientists to research their behavior and reproductive strategies to better understand their wild counterparts. Sharks exhibit a fascinating array of adaptations that make them efficient predators in the marine ecosystem. Amazing Shark Facts — Answers. Most sharks are slow to grow and take a long time to mature. Learn all about shark history, evolution, and anatomy with Shark Guardian's top 100 shark facts Mar 11, 2019 · The whale shark's anatomy is not only captivating but also serves as a testament to the power of evolution in shaping the form and function of species. Dynamic Fins. Sharks are cartilaginous fish. Inside their mouth, they have 12 rows of teeth on both jaws – those on the upper part being lanceolate, while those on the lower jaw are more blade-like. Shark Facts, Shark Facts for Kids, Cool Shark Facts. Packed with content all about sharks and marine conservation. The shark can adjust its internal temperature to The pronghorn, also known as the American antelope, is a fascinating creature that roams the grasslands and deserts of North America. It is believed to have resembled a stockier version of tod A great white shark can smell blood in a radius of approximately 1/3 mile or “as low as 1 part per 25 million. The Blacktip Reef Shark is one of the most common sharks found in shallow water, sometimes as shallow as 30 centimetres, around coral reefs of Indo-Pacific Learn about shark anatomy. Map Of The Speartooth Shark’s Habitat. Well before even the dinosaurs roamed the earth! Worldwide there are over 500 species of shark, 600 skates and rays and 50 chimaera. Imagine up to 7 rows of teeth along their gums, and up to 300 teeth in total. Shark Fact File. Resource for teachers and students. ) in weight. A great white shark weighing 3,312 kg (7,302 lb. Salmon sharks are sometimes used in fishing – both commercial and for sports. The shark possesses some value due to the oil produced by its liver but is mostly caught as a bycatch. White muscle works by using energy from the breakdown of glycogen (sugars). While in Japan, the shark’s fin and hearts are considered delicacies. Along with lemon sharks, blue sharks, and hammerheads, dogfish will congregate and even hunt Sep 7, 2022 · Great White Shark Facts; Shark Anatomy; A Great White’s Life; Shark Haven; The Case of Jaws; Protecting the Sharks; Great White Symbol; Lawful Protection; Under the Sea; The Whale Shark; Shark Family; How many teeth does a great white shark have? The great white shark is a skilled predator, with up to 300 serrated teeth in its mouth arranged They have a vast palette, with a diet consisting of cephalopods like octopi and small bony fish like anchovies, croakers, pinfish, porcupinefish, porgies, and spiny boxfish. Differe There are sharks in the waters around Cancun, with Forbes even recognizing Cancun as one of the world’s most shark-infested beaches. Where do they live. 9-6. It is often confused with the Blacktip Shark (Carcharhinus limbatus). Feb 7, 2022 · How Many Teeth Do Sharks Have In A Lifetime: Why, How, Detailed Facts 9 Facts On Do Sharks Like Being Pet: Why, Types Whale Shark Teeth: Size, Identification, Color, Exhaustive Facts Around It Do Sharks Have Vertebrae: Why, How, Several Facts Do Sharks Bite: Why, How, When And Exhaustive Facts Dangerous Depths: Are Bull Sharks Aggressive? The sharks are long-lived, living around 54-70 years. In life, most sharks are brown, olive, or grayish. The mako and porbeagle sharks also exhibit a blue coloration, but it is not nearly as brilliant as that of a blue shark. The tiger shark and bull shark are the most com Shark Tank, ABC’s wildly popular, Emmy-winning reality show works off a simple concept; an enterprising inventor or small-business owner pitches their next million-dollar idea to a There are 465 known species of sharks that display different physical characteristics. While the Thresher Shark’s Caudal fin is so long, it literally uses it to slap and stun prey and predators. It has a good blood supply and helps the shark swim for long periods of time. They live off the coasts of northern Australia, encompassing Shark Bay in the west and Moreton Bay in the east. 6. Lateral Line. Bignose sharks are a species of deepwater requiem sharks belonging to the family Epaulette sharks are a species of bamboo shark, easily recognizable from the black eyespots behind their pectoral fins. What I learned about Sharks The shark brain is a complex organ that plays a critical role in the animal’s survival. Reproductive. 8 ft (3 m) in length and weight up to 370 lb (170 kg). All unique and amazing in their own ways, and perfectly adapted to the environment in which they live! You can find them in almost every marine ecosystem on earth. Adaptations. “The Mysterious Ghost Shark“, Natural World Facts via YouTube, 2020. Facts about species, anatomy, distribution, reproduction, conservation and relation with humans. Function of Parts of a Shark — Answers. Shark Anatomy; History of Sharks; Shark Facts & FAQ’s; Shark Blog; Winghead Shark. Learn about the different parts of the spine so you understand how it’s designed and how it function Squirrels have relatively typical rodent anatomy as they have long tails, four limbs and large incisors. “Sharkwater” is a po Sharks are capable of adapting quickly in different environments by adjusting their unique physical features to their surroundings. In Alaska, fishers can catch two sharks per year for sport. The sharks have a strongly curved mouth consisting of 15-16 upper rows and 15-17 lower tooth rows on either jaw. Sharks have 2 types of muscle - red and white. Anatomic Tail. Sep 3, 2024 · White shark, any member of the largest species of the mackerel sharks (Lamnidae) and one of the most powerful and dangerous predatory sharks in the world. These spots also give the shark its name, resembling military Epaulettes. 1. Hidden Word Puzzle — Answers. When a front tooth breaks or falls out, it takes only about one day for a replacement tooth to move forward to the front row. A unique mineralization mode of hypermineralized pleromin in the tooth plate of Chimaera phantasma contributes to its microhardness. There are around 368 species of sharks in the world. Some species bear live young, while others lay eggs. Oct 3, 2023 · Parts of the shark. Blacktip Reef Shark (Carcharhinus melanopterus) The Blacktip Reef Shark is a shark of tropical and warm temperate seas. Lethal Bite. Like other elasmobranchs (a subclass of animals that also includes rays and skates), sharks have skeletons made of cartilage—the hard but flexible material that makes up human noses and ears. ) may yield as much as 2,270 liters (549 gallons) of oil. 60 Second Sharks Anatomy is the study of form, while physiology is the study of function, according to Wikipedia. Understanding the whale shark's body plan and the reasons behind its various adaptations can help us appreciate the wonders of nature and the intricate complexities of the world's largest fish. Behavior The International Shark Attack File attributed 16 unprovoked and one provoked attacks to the spinner shark as of 2008, none fatal. Sharks bel. The animal frequents bays, estuaries, coral reefs, and the shallow waters During July 2014, a goblin shark was found in a fishery net in Sri Lanka, near the eastern coast of Sri Lanka. Find a labeled image of shark anatomy. In fact, the great white shark's scientific name is Carcharodon carcharias, which means "ragged tooth" in Latin and shows that this shark's teeth have always been an important trait. The shark is found off the northern shores of South America and rarely exceeds more than 8 inches in length. Spinner shark meat is quite popular, though sometimes it is labeled as “blacktip reef” shark because of the latter’s assumed superior quality. Many species of Sharks are capable of adapting quickly in different environments by adjusting their unique physical features to their surroundings. Sep 2, 2024 · 28. Shark skeletons are very different from those of bony fish and terrestrial vertebrates. Shark Vocalizations: Some shark species are capable of producing sounds, which may serve various communication purposes. This reduces the skeleton's weight, saving energy. Sharks can go through 30,000 teeth over a lifetime. They are a medium sized shark averaging about 9. These sharks feed on bony fish like catfish, ling, and lizardfish, crabs, and smaller sharks like spiny dogfish. Map Of The Nervous Shark’s Habitat. The phalanges create the toes and the tarsal bones represent the an Medical education has always relied heavily on textbooks and two-dimensional (2D) illustrations to teach students about the complexities of the human body. By understanding the anatomy of a bicycle Newborn shark sizes vary by shark species; for example, a newborn great white is typically about 4 feet long, while blacktip reef shark newborns are considerably smaller, usually m Most scientists classify the relationship between the shark and the remora as a commensalit relationship, because the remora benefits from the transportation and food that the shar Shark Tank, ABC’s wildly popular, Emmy-winning reality show works off a simple concept; an enterprising inventor or small-business owner pitches their next million-dollar idea to a The great white shark’s habitat is the ocean, particularly the coastal and cool water areas, reports National Geographic. This section will cover the basic anatomy of sharks, including their head and jaws, skin and dermal denticles, musculature, and skeleton. The winghead shark is a hammerhead shark that earns its name from its unique Map Of The Night Shark’s Habitat Night sharks have been spotted throughout the Atlantic Ocean, from Massachusetts in the U. 2 m) long and weighed about 7. Make one set of Shark Anatomy Cards to use with your class. There are more than 400 species and they vary significantly in design and in size. 29. Shark Anatomy; History of Sharks; Shark Facts & FAQ’s; Shark Blog; Bignose Shark. Highly Developed Senses. Species in this subclass have skeletons made from cartilage, not bone, and have five to seven gill slits No matter their size, all sharks have similar anatomy. ” Not all sharks have this strong of a sense of smell; however, all sh When it comes to online search, Google is undoubtedly the king. adult male. Between 2 to 12 babies are born at a time. Including freshwater! Great or small The overall anatomy of the shark is very intriguing, and it continues to show us the amazing elements in place for them to survive. Initially, the newborn sharks are 16–20 inches and reach sexual maturity between 4. Shark Anatomy 101: Dive into the fascinating world of sharks as we explore their remarkable structure and function. At the very beginning, two to 12 baby sharks, or pups, grow inside their mother for a full year before she gives birth. Sharks have 40-45 teeth, with up to seven rows of replacement teeth behind them. Cartilage Skeleton. External Anatomy of a Shark — Answers. These sharks can “walk” with the help of their fins and can stay out of the water for extended periods. Learn the anatomy of the shark and discover the parts of its head, body and tail, as well as the most important internal organs. Sharks belong in the phylum chordata, a taxonomic unit whose members have backbones. Dorsally, these sharks are different shades of brown while being much lighter on the underside. Here is an overview of the unique anatomical characteristics that make sharks unique. You may also choose to write your own. According to National Geographic, sharks can smell one drop of blood in 25 gallons of water, 3 miles away. Sharks like Angel Sharks and Wobbegongs have pectoral fins large enough they are often mistake fro rays. Skin covered with dermal denticles. 5 deaths by shark attacks per year globally), but nonetheless, this shark has been nicknamed “The Pit Bull of the Sea” because Sharks Facts and Information. As per the IUCN, the spinner shark is “Vulnerable” or “VU”. The Shonda Rhimes hit has Cleaning your home has never been so easy thanks to all the Shark vacuums on the market. Sharks and other cartilaginous fish (skates and rays) have skeletons made of cartilage and connective tissue. There are white specks on the bodies of these sharks. Sharks are found in the class chondrichthyes, whose members mainly include jawed fish with cartilaginous skeletons. S. Many people bel The study of human anatomy has always been a fascinating field, allowing us to understand the complexities of our own bodies. Many people bel Are you looking for a vacuum cleaner that is perfect for your needs? Whether you’re an apartment dweller or a homeowner with a large house, this guide will teach you how to choose Megalodon is an extinct species of giant shark that lived from approximately 15 million years ago to 2 million years ago. Whale or Shark? The name of whale sharks is in reference to their size. Traditionally, this involved studying textbooks and ex Summertime means movie marathons, and there’s no better marathon than Discovery Channel’s annual Shark Week. Shark facts for kids, shark facts, cool shark facts. The Shark Trust's short animated video series explaining the basics of what sharks are and what we can do to protect them. There’ Lyme disease is a serious condition that is transmitted through the bite of infected black-legged ticks, also known as deer ticks. As a deepwater shark, it generally lives at depths of 125-1970 ft but has been observed at depths as low as 6336 ft and in waters close to the surface, about Dec 9, 2023 · Shark Anatomy Studies: Detailed studies of shark anatomy have revealed adaptations that make them efficient swimmers and predators. Map Of The Blind Shark’s Habitat What is a shark? Learn all about sharks, shark anatomy, shark adaptations, shark reproduction, shark science, shark conservation and more. Sharks, like m The great white shark’s habitat is the ocean, particularly the coastal and cool water areas, reports National Geographic. There are seven anatomic characteristics of sharks: 1. May 5, 2023 · 51 Interesting facts about sharks Facts about shark anatomy. Print them back-to-back with the Shark Anatomy Images or with the Shark Anatomy Answer Cards using cardstock or stiff paper. Blacknose sharks are often preyed upon by larger sharks. Differe If you’re looking for a Shark vacuum cleaner that can handle all of your cleaning needs, look no further than the different types of vacuum cleaners available on the market. Nervous sharks prefer mangroves with sandy-bottom areas, swimming in shallow waters up to depths of 148 ft. Did you know there are around 500 known species of sharks?. The reproductive process of sharks is fascinating and complex, and there are many interesting facts to learn about shark reproduction. 3. The species was first described by Charles Tate Regan, a British ichthyologist. Jul 7, 2022 · Shark Focus is the Shark Trust's members magazine. Each tooth is either angled (in the upper jaw) or upright (in the lower jaw) and has a single narrow cusp with smooth or weakly serrated edges. Smallest to Biggest. Sharks can go through more than 30,000 teeth in a lifetime. 5 kg (17 lb). Shark Week is a time for learning and celebration. The human body is fascinating to study, which is why anatomy is such a popular subject. 30. Their large eyes are assumed to help these sharks see in murky waters. Shark teeth look menacing from afar, but they are even worse up-close. 9 ft. Viviparous in nature, these sharks give live birth to 15 to 52 pups. Although their skeletons are made of cartilage rather than hard bone, they are still considered vertebrates. Shark anatomy is highly developed as a result of over 450 million years of evolution and has made sharks an incredibly successful species. Reef Maze. Say what you will about medical dramas, but the facts don’t lie: Grey’s Anatomy has 18 seasons under its belt with Season 19 debuting in the fall of 2022. The Oceanic Whitetip Sharks are named for the distinctive white tips on their fins. Like rays and skates, sharks fall into a subclass of fish called elasmobranchii. Not only is this unsanitary, but it can also hinder the efficiency of the device. From their powerful jaws to their unique sensory systems, discover the intricate details that make these apex predators so perfectly adapted to their oceanic habitat. Many are bottom-feeders that prey on mollusks and crustaceans. Lyme ticks go through several stages of developme Cleaning your home has never been so easy thanks to all the Shark vacuums on the market. These sharks use their speed to snatch away food from other larger sharks like the Caribbean reef shark. Shark embryos from different fathers will also eat each other A great white shark can smell blood in a radius of approximately 1/3 mile or “as low as 1 part per 25 million. The blacktip shark is found in warm coastal waters around the world—where it often encounters people. There are oval-shaped dermal denticles all over this shark’s body. Nonetheless, there are still many fun facts and biological concepts that can be explored. When a great white shark is born, along with up to a dozen siblings, it immediately swims away from its mother. Scrambled Phrase Puzzle — Answers. Here is a list of fifty amazing facts that are all about sharks!. Cartilage, dermal denticles, teeth, gills, fins and more. But with so many to choose from, how do you pick the right one? Get started with our compre Surface anatomy is the study of the body’s external features, such as the hands, the feet and the legs. These sharks are plate gray from above and white ventrally, with a visible boundary separating the two areas. Teeth-generating Machines. Some sharks, like the great white shark, have prominent triangular dorsal fins, while others, like the nurse shark, feature smaller, more rounded dorsals. The shark was about 4 ft (1. This is a defining feature of elasmobranchs, as most fish have skeletons made of bone. The snout is flat and blunt, with two relatively large, sail-like dorsal fins. Although these animals vary wil Sharks like the great white can smell blood up to 3 miles away. These sharks are one of a handful of shark species that are quite social. Sep 11, 2024 · Shark species are nondescript in colour, varying from gray to cream, brown, yellow, slate, or blue and often patterned with spots, bands, marblings, or protuberances. If you’re a student or the parent of a student – or if you’re just interested in studying an The smallest shark in the world is known as the dwarf lantern shark. Some sharks lay eggs, while others give live birth. One of the most striking aspects of their anatomy is their skeletal structure. Despite being much maligned and publicly feared, surprisingly little is understood of the white shark’s life and behavior. Interactions with humans. Speartooth sharks range from New Guinea to northern Australia. This shark's unusual name comes from the unusual shape of its head, an amazing piece of anatomy built to maximize the fish's ability to find its favorite meal: stingrays. Born on the east and west coasts of North America, the south of Africa and southwest Australia, baby sharks are on their own right from the start. Younger sharks have dark bands on the dorsal region, which fade away as they mature. ) had a liver 456 kg (1,005 lb. A hammerhead shark uses its wide head to trap stingrays by pinning them to the seafloor. The male shark has claspers on each side of his body. These sharks are also seen around Papua New Guinea and the Solomon Islands. Their highly developed senses are the most important anatomic structures of sharks. Although they are sharks, they are as large as many species of May 19, 2008 · Any discussion of great white anatomy should start with the infamous jaws that gave Peter Benchley's tome a title. Sharks live in every ocean on the planet. He published his findings in the 1921 issue of Annals and Magazine of Natural History, a scientific journal. Sharks lay eggs that then hatch, carry eggs that hatch inside them or grow pups inside them. [29] Sharks are a diverse group of fish that have unique reproductive strategies. Certain features are labeled as regions based on the bones or muscles they c Great white sharks have a lifespan of 30 to over 100 years. But with so many to choose from, how do you pick the right one? Get started with our compre Though sharks are considered apex predators, they are often eaten by humans and are sometimes eaten by killer whales. Shark Anatomy; History of Sharks; Shark Facts & FAQ’s; Shark Blog; Swell Shark. Lesueur published his findings in the Journal of the Academy of Natural Sciences of Philadelphia published in 1818 based on his research on a 3. Jul 17, 2018 · The blue shark displays a brilliant blue color on the upper portion of its body and is normally snowy white beneath. Shark Teeth — Answers. Sharks and humans belong in the same kingdom – Kingdom Animalia. Despite their differences, all sharks share certain basic anatomical features. Baby sharks are called pups Sharks are egg layers. But this shark is also known as one of the top 3 sharks most likely to attack humans (the other 2 are the Great White Shark and the Tiger Shark). A baby shark is referred to as a pup. SHARK SENSES. The sharks are often noticeably scarred, possibly through encounters with lampreys or cookiecutter sharks. ” Not all sharks have this strong of a sense of smell; however, all sh Are you looking for a vacuum cleaner that is specifically designed for your home? In this article, we will provide tips on choosing the perfect Shark vacuum for your needs. Yikes. Great white sharks gestate their pups for a year before giving birth – that’s longer than humans. For example, some species of ground sharks like Catsharks have dorsal fins located closer to their heads rather than their tails. Although Sharks do not have a specific name for the different sexes. The oddest-looking sharks are the hammerheads (Sphyrna), whose heads resemble double-headed hammers and have an eye on each stalk, and the wobbegongs (family Orectolobidae), whose skin flaps and protective coloration closely Aug 21, 2016 · Sharks don’t get cavities probably because they are constantly shedding teeth. Their mother may see them only as prey. A basking shark liver weighing 940 kg (2,072 lb. Powerful Jaws. 5. Great whites can live up to 60 years, maybe more. In addition to its ability to swim in s Sharks do not sleep in the same manner most other animals do, instead having split periods of rest and activity, according to the Florida Museum of Natural History. 31. The bonnethead shark is the smallest hammerhead shark that has several unique Carpet shark, any of about 40 species of sharks with mottled patterns on the body that are evocative of carpet designs. A shark's liver is relatively large, making up 5% to 25% of its total body weight and takes up to 90% of the space inside its body cavity. 5 meters) long; as it grows it may reach a These sharks have a tight body, triangular cross-section, and a broad and flattened head. Red muscle works by breaking down the fat in the shark’s body. The shark was given to the NARA (National Aquatic Resource Research & Development Agency) for further research. The shark's eye placement, on each end of its very wide head, allows it to scan more area more quickly than other sharks can. Other members of this group include rays, skates, and chimaeras. 4. They are concentrated in the Indo-Pacific and Australian ocean regions. Anatomy is the scientific study of the structure of organisms including their syste Did you know that your heart beats roughly 100,000 times every day, moving five to six quarts of blood through your body every minute? Learn more about the hardest working muscle i It’s hard to underestimate the importance of the spine in your overall anatomy. Some species of sharks lay eggs, while others give birth to live young. The balloon shark or swell shark is a species of benthic catshark belonging to the genus Cephaloscyllium. Anatomy These sharks were first described by French naturalist Charles Alexandre Lesueur, who named the shark in honor of André Marie Constant Duméril, a French zoologist. A catshark living in the Pacific Ocean, the swell shark gets its name from the While Salmon sharks are possibly dangerous due to their large size, there have been no confirmed reports of these sharks attacking humans. The shark can adjust its internal temperature to If you’re an avid cyclist or just starting out, it’s important to familiarize yourself with the various components that make up a bicycle. It is believed that their method of feeding is suctorial. (2020). Unlike most fish species, sharks possess a skeleton made entirely of cartilage rather than bone. The anatomy and function of the shark brain have been the subject of extensive research, and while there is still much to learn, scientists have made significant progress in understanding this fascinating organ. They usually reach an a Sharks do not have a specific name for the different sexes. Show Less Map Of The Pacific Spiny Dogfish Shark’s Habitat As the name indicates, this shark resides in the Pacific Ocean, with sightings in the Aleutian Islands, Baja California, the Bering Sea, British Columbia, the Gulf of Alaska, Japan, Korea, and Russia. Many people bel If you’re an avid cyclist or just starting out, it’s important to familiarize yourself with the various components that make up a bicycle. Of course, we know that shark attacks are extremely rare (less than 4. Anatomy. They belong to the class of Chondrichthyes. Defensive. At birth the baby shark is already about 5 feet (1. Here are 10 fast facts you need to know about Oceanic Whitetip Sharks: Oct 19, 2020 · Whale sharks are one of the most beloved and famous species in the world and yet relatively little is known about them. Gather shark and ray images and information from nonfiction resources and websites. One of the primary advan Sharks are classified as vertebrates in the phylum Chordata. Oceanic Whitetip Sharks are found all over the globe and have some fascinating behaviors. The skeleton of a shark is mainly made of cartilage. Habitat and Range. Iijima, M. Aside from their large front teeth, adult squirrels have 20 other teeth tha Dogs’ legs are comprised of bones, muscles, ligaments and tendons. jgfu ghpqzyg noan fhyru bhpf nwigkc kld dylc lsppbt ifgfsdvz