goblin shark predators. It doesn’t have to contend with many predators in its habitats, so strength – when compared to other sharks – isn’t that much of a defining feature. goblin shark predators

 
 It doesn’t have to contend with many predators in its habitats, so strength – when compared to other sharks – isn’t that much of a defining featuregoblin shark predators  9

However, the longest officially recorded specimen is roughly 10 ft long, while the heaviest Salmon shark is about 992 lb. 2. It has a ghoulish appearance, thanks to jaws that can stretch well away from the rest of its head. What are goblin shark's predators? squid, and sea turtles eat them. Sharks are apex predators. Oceanic whitetip sharks are top predators that love the wide-open ocean. See more Simulation Devil Shark Plush Toys, Devil. The snout is filled with electroreceptors that allow the shark to. The goblin shark has many characteristics that make it unique. It has a super freaky distant shark relative. When skinned with a Refined Knife, it gives 3 Rawhide and 3 Large Meat. 25亿年历史 ,是一種深海鯊魚。 歐氏尖吻鮫的特徵是牠的吻向前突起而形成一尖突,比其他鯊魚的更為長,以此感觉. It is a fascinating and little-understood creature of the deep sea. Some specimen has been. However, in some installments, you can eat sharks bigger than you are. . The goblin shark has a mouth that is shaped like a parabola. The reason it is called a vampire is because it avoids the light by living deep in the sea. Because the Goblin Sharks live very deep in the ocean, they are unlikely to encounter many predators. It lives in very deep water, far from humans, and it is thought to be a poor. The only games where you can do that are Hungry Shark: Night, Hungry Shark. The Pacific sleeper shark is both a predator and a scavenger. The average length is between 18 and 32. The bull shark changes its tolerance to fresh water as it gets older. Before that, in 2014, a goblin shark was captured in the Gulf of Mexico. In comparison, the average depth of the Pacific Ocean is 4,188 m (13,740. There is no doubt that the Goblin shark is an. Goblin Shark. 6 feet (3. The Goblin Shark’s basihyal (‘tongue’) is large and highly mobile, while. . Do goblin sharks lay eggs? They may be ambush predators. 5 inches long. 9. Size: Length: up to 12 ft; Weight: up to 460 lbs. Giant Bull Ants, which are native to Australia, range between 0. What Does The Goblin Shark Eat. The Goblin Shark has to make do with whatever swims into its path. ”. They include some famous shark species, such as the great white and goblin sharks. Newsletter. The goblin shark lives in extreme. Their unique appearance makes goblin sharks easy to identify. The Pacific sleeper shark is both a predator and a scavenger. Not all sharks are powerful, fast-moving predators with a taste for fresh meat. This rare species of shark has a gruesome appearance. Animals that continually live in deep sea habitats face unique challenges and require adaptive specializations solutions in order to locate and identify food, predators, and conspecifics. They have a long, flat snout that is lined with electroreceptors, which help them to find food in the dark depths of the ocean. Its common name comes from its enormous eyes, which are placed in keyhole-shaped. 3‭ ‬– Stethacanthus. 8 meters), and females can reach up to lengths of 12. Squid. Deep sea sharks like the Goblin Shark or the Frilled Shark, originated during the Cretaceous Era. DISTRIBUTION: Goblin Sharks have a wide but patchy distribution, found in deep waters of the Atlantic, Indian, and Pacific Oceans. Among them are goblin sharks and Greenland sharks, which tend to have low metabolic rates. The goblin shark has many teeth arranged in multiple rows. They should not be confused with whitetip reef sharks which are found in reef habitats whereas oceanic whitetip sharks prefer the open sea. Each animal has its own lifespan. Their unique appearance makes goblin sharks easy to identify. The shark is. 4. Goblin sharks have many teeth as well. Their predator includes orcas or killer whales. 4. Goblin sharks, Mitsukurina owstoni (Jordan, 1898), are bizarre, sinister-looking creatures (mainly after they die). Appearance And Behavior. The protruding jaws help them grab onto their prey easily. As predators, sharks play a vital role in the health of marine ecosystems - by eating fish they help create balance in the food chain. This shark’s territorial behavior and migration patterns are not well-documented. Unlike most deep-sea sharks, the Goblin has smallish eyes with fully functional irises that contract and dilate. It uses its long snout and electroreceptors to locate potential prey in the dark depths of the ocean. Goblin Shark. Longfin mako sharks are predators that. They are said to be active. The largest goblin shark ever caught was 210 kilograms and was 12. Description. 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. Sharks are some of the ocean’s top predators. A Japanese fisherman spotted a strange eel-like creature and alerted the Awashima Marine Park in Shizuoka who captured the animal. Another sea creature can depose a strange defense mechanism as a way to keep enemies at bay. They subsist on a diet of bony fishes, crustaceans and cephalopods, like squid. Published October 8, 2015. Greenland sharks are among the world’s chilliest predators. Goblin sharks, Mitsukurina owstoni (Jordan, 1898), are bizarre, sinister-looking creatures (mainly after they die). The. Some animals may appear “dumb” but are actually smart, such as the killdeer, which distracts predators from its nest of young by faking a broken wing. The goblin shark’s appearance is what sets it apart from other sharks. Squalus ferox A. The goblin shark bite then completes the feeding process by widening the jaws and eating. The goblin shark is not fished commercially, and is only rarely captured accidentally in. Because the shark is slow and awkward, it cannot hunt down prey and must instead wait for prey to approach it. Great White Sharks are the bigger predator. Goblin sharks appear to be pink due to the blood vessels visible through their translucent skin. There are lots of enemies that swarm around the Goblin Shark. Goblin Shark Predators Der er ikke meget information om, hvilke andre dyr der kan være rovdyr for disse hajer. Discover and explore the cultural and conservation story of these prehistoric and mysterious ocean predators. There are 30% more females present in Scottish. The Goblin Shark most likely hunts its prey by detecting electric fields. Scientifically named Chlamydoselachus Anguineus, it is so old that it is considered a living fossil. It is the top predator in Africa’s rivers, and. 15. 45 feet and weigh up to. The goblin shark is the sole member of its genus, Mitsukurina; its scientific name is M. Goblin sharks, scientifically known as Mitsukurina owstoni, possess unique adaptations to defend themselves against potential threats or predators. There is also a shark called the goblin shark these sharks stay at the bottom of the ocean, as low as 3,940 feet. 2. 2 feet (6. They usually inhabit deepwater rocky habitats, though they are occasionally encountered in shallow. When it detects a suitable target, it. Diet and Hunting Habits. 8. • 5 min read. Most young goblin sharks may fall prey to grown up. 1 Goblin Shark’s Snout9 Rozmieszczenie, populacja i. They primarily eat fish and squid, and they are able to sense when their prey is nearby. When swimming, a Goblin shark is usually slow, gliding through the water at a leisurely pace. While certain shark species prefer specific marine environments – tigers, hammerheads and bull sharks prefer tropical waters, the Greenland and goblin shark opt for cold water and the mako, thresher and basking sharks have a preference for temperate waters – sharks aren’t territorial by nature so they will frequently change their habitat. The. Like all sharks, the goblin shark is a predator that hunts for prey. It is a large fish that can grow up to 60 feet long, though most specimens reach about 40 feet in length and weigh about 15 tons. What do Goblin Sharks Eat? The goblin shark has been around for around 125 million years,. Shark are a predator in the ocean and the potential risks of being. According to. Have you ever seen a lightning fast mouth eat a fish. The deepest part of the Mariana Trench, the Challenger Deep, is 10,994 m (36,070 ft. These sharks will prey on fish found both on the sea floor and in the water column. 4. The goblin shark (Mistukurina owstoni) has a long, prominent snout covered with special sensing organs (ampullae of Lorenzini) that help it to sense electric fields in the deep,. The scientific name of this shark is Mitsukurina Owstoni. Latin name:. Goblin sharks can extend their jaws out almost as far as their snout tip, and they can open up their massive mouth to a 111-degree angle to catch prey of significant size. The Goblin Shark (Mitsukurina owstoni) is probably the strangest shark on the planet due to its oddly shaped, blade-like snout and toothy, forceps-like jaws. Fish 3d model Art by Existence in Characters - UE Marketplace GOBLIN SHARK FACTS Simulation Devil Shark Plush Toys, Devil Shark Stuffed Animals Cute and Soft Realistic Ocean Animal. Although preserved specimens are brown, living sharks are pinkish-white, with slender, unusually soft and flabby bodies. 8 m, they have a soft, flabby body, pinkish-gray color, and a peculiar, blade-like snout overhanging long, highly protrudable jaws with slender, fang-like teeth. The Goblin Shark is an amazing species that has adapted to survive in the deep-sea environment. This rare shark species is creepy and unusual, often described as "fossil-like. Considered rare and found in random spots around the globe, the Mitsukurina owstoni wasn't discovered in. Jessica Morris of Humane Society International calls shark culling a "knee-jerk reaction" and says, "sharks are top order predators that play an important role in the functioning of marine ecosystems. After its birth, the baby goblin shark is ready to become active predators. The list of goblin shark prey includes crabs, squids, and different small species of fish that are caught by them. They have the slowest evolving genome of all known invertebrates. The name goblin shark comes from a translation of its Japanese name, tenguzame. These deep-sea predators are one of the most recognizable species of shark due to their strange shaped head known as a cephalofoil. Shark Fact #88. Australian Museum exhibit of Goblin Shark. Sharks are some of the ocean’s top predators. The. Our research suggests that this. of Species: 3: Conservation Status: Vulnerable (Pelagic & Common Thresher), Endangered (Bigeye Thresher) Thresher sharks are in the same order as great whites, basking sharks, the megamouth shark, and unusual goblin shark. She notes the jaws of goblin sharks, cookie-cutter sharks, nurse sharks and more are all vastly different, suited to different prey and feeding, in a broader diversity of form than seen in the past. Another impressive Mackerel Shark, is the Mako Shark. 4. That means they move slowly, Balk says — much more slowly than the energetic predators of the movie. Goblin shark predators. Growing to a maximum length of 4. The goblin shark, found mainly off Asia, can project its jaw forward to pull prey into its mouth. Goblin sharks: Some of the most unique looking sharks in the world (check out a picture later in this article!). 12-Predator's pounce or furious grab. More than 450 species of sharks cruise the world’s oceans, ranging in size from 8 inches to a whopping 40 feet long. The goblin shark is the sole member of its genus, Mitsukurina; its scientific name is M. Goblin Shark. 3 and about 1. The Octopus is a brilliant and crafty animal who can be pretty fast and slippery in the water when trying to escape from predators such as sharks. Scientists have assumed the goblin shark uses this trick to eat—but until recently, no one had actually watched one catching prey in the wild. They are also known as deer-pigs or pig-deer. It’s thought that this is the best way for the shark to compensate for its terrible body and inability to swim fast to catch prey. The Whale Shark is the biggest fish in the world. Males can reach up to lengths of 12. 9. Our research suggests that this. The goblin shark is clearly a predator, but other than that, we’re pretty much in the dark on its lifestyle. The average adult size of a Goblin Shark is 11 feet tall, but the largest one ever measured was 12. A few researchers believe that blue sharks will eat goblin sharks in the future. Here are 13 interesting facts about your new favorite shark! 1. As a predator, the Pacific sleeper shark is able to swim quietly and ambush unsuspecting prey. The Goblin shark is a deep sea water predator of fish, squid and crustaceans and its shape is unlike any other extant shark species, including the Sawshark and the Sawfish. They dwell in the. There are no reported incidents of Goblin Sharks attacking humans. These sharks only reach lengths of 6-8 inches, making them the smallest sharks in the entire world. The Goblin Shark is a rare deepwater shark characterised by a long snout and protrusible jaw with nail like teeth that are used to strike and capture prey. However, some researchers believe that blue sharks might attack and eat goblin sharks. Slow and Steady. It is likely that Blue Sharks and other sharks will eat them. The Goblin Sharks are unlikely to attract a large number of predators because they live deep in the ocean. ‭ ‬Most sharks have triangular dorsal fins but the dorsal fin of Stethacanthus was shaped like an anvil with a broad flattened top. The goblin shark (Mitsukurina owstoni) is a pink-skinned deep ocean-dweller with a very distinctive snout – elongated and flattened,. Like all sharks, the goblin shark is a predator that hunts for prey. The Goblin Shark is able to quickly snatch its prey because of its unique sprint jaw, which is the fastest of any shark species. led to a 21% drop in abundance of large predators such as sharks,. 1. The goblin shark, known for its unique appearance, is a deep-sea predator. 5. This allows the animal to chow down on snacks such as teleost fish and squid. The goblin shark, found mainly off Asia, can project its jaw forward to pull prey into its mouth. There are no reported incidents of Goblin Sharks attacking humans. The Goblin Shark, or Mitsukurina owstoni, is a rare and mysterious deep-sea species of shark found in the waters off the coasts of Japan, South Africa, and Australia. These are a family of fish with especially large teeth for their size. Goblin sharks can open their mouth to a staggering angle of 111 degrees. Diet: Fish, squid, and crustaceans. Great Hammerhead Shark. Goblin Shark Description. The average adult size of a Goblin Shark is 11 feet tall, but the largest one ever measured was 12. The large size and aggressiveness of the shark also make it one of the biggest sea predators. (Martin, 1999) Ecosystem Roles. 11. The Goblin shark is a truly unique top predator in deep sea. Most Goblin Sharks grow to 5–7 feet, however, the largest recorded of the species was 12. The goblin shark is clearly a predator, but other than that, we’re pretty much in the dark on its lifestyle. By David Frank. Electric Eel. This is how sharks help keep our oceans healthy and marine life in. Nema puno podataka o tome koje bi druge životinje mogle biti grabežljivci ovih morskih pasa. This counter-illumination eventually helps these creatures escape predators that move in these deep depths. The pink-skinned animal can catapult its jaw forward by two pairs of elastic ligaments along the mandibular joint. These sharks are harmless to humans. The goblin shark is fast and aggressive, and will attack the player on sight. 84 m). Goblin Shark. Badass pictures, gifs and videos of the awesome yet vicious cycle of natureThe goblin shark nabbed off Key West, Florida which was 18-feet-long, pink, and has a long snout to conceal it pointy teeth from prey is the second ever of its kind to be seen in the Gulf. When it detects a suitable target, it will quickly project its jaws forward to capture and bite its prey. This helps them avoid predators and. In general, the best place to encounter a Goblin shark is off the coast of Japan. There are no known predators of the goblin shark except for infrequent Japanese fishermen. A goblin shark can use its jaws twice as fast as New York City’s pedestrian walk. Their pinkish-red skin actually blends in when in the deep sea. The IUCN does not list the goblin shark as endangered, but it is listed as the least endangered. 5. They average in weight is 450 pounds and their location and food sources play a role in overall size. . They use their highly extendable jaws to capture and consume their prey. Goblin Shark. Instead of ruling as fierce predators, crow sharks were likely scavengers that fed upon already-dead animals. The diet of the goblin shark is similar to most other marine predators and is largely comprised of fish, crustaceans, and squid. Goblin Sharks are pinkish-grey to purplish-gray in color and have a flabby body with small fins. Shireen Gonzaga. Its sharp. The video of the amazing frilled shark is extremely rare. The term goblin shark refers to the old Japanese word tegeuzame, which means “tenguzame shark. In a new 3D modeling study published this week in Science Advances, we show that the giant extinct shark, Otodus megalodon, was a true globetrotting super-predator. Fun facts about the Porbeagle Shark: This shark has many nicknames, including the bottle-nose shark and bluedog! Scientists believe their main predators could be the great white shark and the orca. Interesting Ghost Shark Facts. S 11th May 2021 by Wild Eye Releasing. The Goblin Shark mostly feeds on fish, mollusks and crab, and it poses no real danger to humans. Surprisingly, sharks often consume stingrays – a feat of considerable bravery. The goblin shark is not fished commercially, and is only rarely captured accidentally in fisheries targeting other species. 1. 3 mph when surface feeding, Whale Sharks are vulnerable to commercial fishers’ harpoons and nets. Each fish has its own signature something that sets it apart as one of the planet’s scariest sea creatures. The. In fact, sharks and their relatives were the first vertebrate predators on Earth. Lifespan is one of the most eagerly awaited facts. The shark's "nose" is dotted with sensory cells. It snaps its jaw forward to catch the victim. This helps them avoid nocturnal predators like owls, foxes and snakes. Goblin Shark prey and predators. How big is a goblin shark? SLOW GOING. These sharks have the largest teeth of any shark species at any location. Scot was heading out from nearby Bolinas when he heard what was happening over the radio. The Greenland shark is a huge animal, and though it doesn’t move fast, it is an apex predator and simply too big for other predators to handle. However, pygmy sharks are fully grown when they reach 11 inches. A turtle can grow to be 12 feet long and can reach depths of 800 to 3,000 feet in all three major oceans over the upper continental slope, where it spends the majority of its life. They will walk away from danger. 138 Words1 Page. With a sizeable protruding nose and sharp jaw, the Goblin Shark hunts for prey in the ocean’s inky depths. Quick Facts: – Goblin shark’s jaws are attached to elastic ligaments and while hunting, it thrusts its jaw forward. However, larger predators such as great white sharks and killer whales have been known to attack goblin sharks. Members of the order, officially known as Lamniformes, have two dorsal fins, an anal fin, five-gill slits, and a mouth that extends behind the eyes. 8. . 2. One of the dumbest animals, the goblin shark, gets. Inside the mouth are 25–32 tooth rows in the upper jaw and 30–34 in the. Fangtooth. It is known that thresher populations of the Indian Ocean are separated by depth and space according to sex. They have narrow snouts and fanglike teeth. Many have been caught off Honshu, Japan, at depths of 60-280 meters. The Goblin shark is a benthopelagic creature that primarily preys on bottom-dwelling aquatic species. Interesting Ghost Shark Facts. Then there’s the lower jaw which has 31 to 62 rows of teeth. Seat bass. The Goblin shark is a deep- sea shark with a unique form of buoyancy control that allows it to travel fast. The goblin shark, or Mitsukurina owstoni, is a rare shark species that can only be found in Asia. 17 metres). Goblin sharks appear to be pink due to the blood vessels visible through their translucent skin. Because of its size and cartilaginous skeleton, it does not fossilize well and in life it is very difficult to weigh accurately. But the Goblin Shark is more of a slow swimmer. 7. Despite its unusual appearance, little is known about this incredible creature, including its conservation status. Marine hatchetfishes are found at depths ranging from 50 to 1,500 m. These sharks usually grow to around 10-13 feet in. 5 feet) in length. The goblin shark is a deep-sea predator that feeds primarily on fishes, cephalopods, and crustaceans. Goblin Sharks Can Live Up To 60 Years. Because their meals can be few and far between, oceanic whitetip sharks are. 8 meters). The Goblin shark is a bottom-dwelling shark, being found in waters as deep as 4265 feet. ago. The female Goblin shark mate during fertilization, giving birth to a small number of relatively large pups. 8. One of the creepier fish is the goblin shark (Mitsukurina owstoni). The human ear can’t pick them up underwater, but the blue whale happens to make the loudest noise of any animal, up to 188 decibels, which is louder than a jet engine. This deep-sea predator. To guide the Kratt brothers back, the rest of the team shine a beacon light and tell the Kratt brothers via intercom that they should look for a light and follow it. Goblin Shark: The Goblin Shark, which is sometimes referred to. The longfin mako is a pelagic species found in moderately deep water, having been reported to a depth of 220 m (720 ft). Goblin Shark Predators and Prey Goblin Shark Predators. The Goblin Shark’s streamlined body also helps it to move quickly and efficiently in the deep-sea environment. A deep-water dweller by nature, the goblin shark is a rarely seen oddity. In the wild, their life expectancy is 30 years. Goblin sharks are slow-moving and have poor eyesight, which makes them easy prey for faster, more agile predators. The Mitsukurinidae family was traced back 125 million years ago. 7. What are the goblin shark's predators? - Quora. Goblin sharks are mostly found on the upper continental slopes at depths of 270 to 960 m but have also often been caught at more profound depths of 1,300 m. These sharks are large, ranging from approximately 6. The bigeye thresher ( Alopias superciliosus) is a species of thresher shark, family Alopiidae, found in temperate and tropical oceans worldwide. Humans. The uniquely ugly goblin shark. The epaulette shark has. They are the among the oldest fish in the ocean. Find out more about their slow speed, narrow snouts and fanglike teeth. Take the goblin shark, for instance. With extendable jaws, poisonous flesh, and a dazzling array of adaptations ranging from glowing eyes to glowing underbellies, these sharks showcase the remarkable ways marine predators have evolved to survive in the ocean. Goblin sharks in their natural habitat are rarely seen and hardly ever captured on film. low poly fish. It inhabits the continental shelf, from sandy shorelines (hence the name sand tiger shark) and submerged reefs to a depth of around 191 m (627 ft). If you really want to counter the Goblin Shark, get up close and face tank, you have higher HP so don't be afraid to take a shot. Jun 16, 2023 at 12:24 PM EDT. 6 to 9 inches long. Because goblin sharks are rarely seen in the wild and nearly never filmed, most of what scientists know about them comes from their inadvertent capture in fisheries aimed at other species. Textile Cone Snail. The upper jaw contains anywhere between 35 and 53 rows of teeth. the goblin shark is known for its mouth full of nail-like teeth and intricate jaws that can devour prey before you can blink your eyes. Based on its skeleton and other features, it is. . 5 feet) in length. Diet of the Goblin Shark The bulk of this species’ diet consists of fish in the teleost infraclass, including dragonfish, rattails, anglerfish, and more. As a result, the long-tailed or common thresher shark, Alopias vulpinus, is also known as the fox shark. The depths of the Goblin Shark’s prey are so shallow that it is unable to attack them, though blue sharks may pursue them. 21. Orcas have also been mentioned as predators of juvenile whale sharks. The sand tiger shark (Carcharias taurus), gray nurse shark, spotted ragged-tooth shark or blue-nurse sand tiger, is a species of shark that inhabits subtropical and temperate waters worldwide. Also known as a living fossil, the goblin shark is a rare species of deep-sea shark. The smalltooth sand tiger or bumpytail ragged-tooth ( Odontaspis ferox) is a species of mackerel shark in the family Odontaspididae, with a patchy but worldwide distribution in tropical and warm temperate waters. Scientists have been fascinated by the. While human encounters with goblin sharks may be few and far between, what we do know about them has made one thing pretty clear—far from an athletic and speedy predator like a great white or mako shark (their relatives in the order Lanmiformes, or mackerel sharks), goblin sharks live seemingly mellow lives. What are the dangers of Goblin Sharks? It has a distinctive snout and a row of. Anisopleurodontis is a genus of shark, but this genus contains just one species! They went extinct almost 300 million years ago and were closely linked to ratfish. Science Reporter. The blue whale is not only the world’s largest animal, but also the loudest. Once a shark is killed, the player will be able to either drag it to shore to. August 15, 2016. The Goblin Shark, a fascinating aquatic species, is one of the world’s most fascinating creatures. Forskere, der har undersøgt disse dyr og deres levesteder, mener dog, at nogle andre hajer, såsom Blue Sharks, kan bytte dem. Sharks are cold blooded, and that would usually imply that they would search for areas where the temperatures are very cold. Hammerhead species have been listed as vulnerable (smooth hammerhead) or endangered (scalloped hammerhead) due to this practice. These sharks will prey on fish found both on the sea floor and in the water column. The Goblin shark is a deep sea water predator of fish, squid and crustaceans and its shape is unlike any other extant shark species, including the Sawshark and the Sawfish. Latin name:. However, these sharks are mostly found in deep water. 3 to 3. The fossil record of a Goblin shark shows that it lived at the bottom of the ocean along. 1. The Carp and Tilapia happen to enjoy the taste of Axolotl. Sand sharks are a type of mackerel shark, like the goblin shark and megamouth shark. 3 How Goblin Sharks Hunt and Reproduce. The barreleye fish has a clear skull, so it is able to look up for predators. Goblin Shark Research Paper. However it also occurs in deeper waters on continental shelves, with large individuals found offshore as deep as 570 m (1,870 ft). Scientists think the snout's main purpose is to help the shark find food in deep, dark waters. Goblin sharks are able to open their mouths quite wide, almost reaching to 111-degree angle. The common name is derived from a distinctive, thresher-like tail or caudal fin which can be as long as the body of the shark itself. 6. Some of the fish caught off Honshu, Japan, have been found at depths of 60 to 280 meters. The mating process often occurs in deeper waters, where these sharks are usually found. How big is a Goblin Shark? Most Goblin Sharks are between 9. The name “basking shark” was inspired by the shark’s tendency to swim near the surface in search of food. 6 inches. In fact, ghost sharks belong to the only group of fish with true nostrils! 1. The largest specimen recorded was about 8. The epaulette shark has. These sharks are very similar to the goblin sharks that live today, but some key changes differentiate the two including their fins.