While a bull shark is a large predator that grows up to 11 feet (3.5 m) or more, the bullhead shark is much smaller, usually getting no longer than about 5 feet (1.5 m). It commonly enters estuaries, bays, harbours, lagoons, and river mouths. When you look at other species of sharks that are the same size you will see that this one is wider. It is the only known shark species which is found in freshwater, and can spend long periods of time in such environments. Unlike most sharks, bull sharks don’t lay eggs or rear their young. The Bull Shark – They’re everywhere you wouldn’t expect them to be! Some sharks display behavioural thermoregulation, which refers to their choosing specific habitats or behaviours based solely on the water temperature. I am not sure about bull sharks ever being spotted as far north as lake michigan however I wouldn't be surprised if they did. Because it swims where humans do -- close to shore. How Does The Bull Shark Thrive In Both Salt And Fresh Water? An example of this is rising to the top during the safer night hours to digest food faster using less energy. Therefore, you will find the majority of younger bull sharks in freshwater while the older bulls frequent saltwater areas. Bull Shark Description. What you may not know is the bull shark could actually be the most dangerous of them all. Behavior of the Bull Shark . They can thrive in freshwater bodies, brackish water, or salt water. But the bull shark aside, chances are if you're the big fish, you'll be safe from predators. Bull shark facts Bull sharks usually live to 14-16 years. https://www.mentalfloss.com/article/538474/facts-about-bull-sharks Instead, pups are born live, just as with mammals, and already span two feet long at birth. The Bull Shark is one of the big three that we’re concerned about in relation to shark attacks on humans, along with the White Shark and the Tiger Sharks. They will feed on just about anything, so getting them to eat is not difficult. They are viviparous, born live and free-swimming. The size of your standard common shark, or elasmobranch, ranges from the four-foot-long spiny dogfish shark to the 40-foot whale shark -- and there are a lot of sizes in between. Bull sharks are capable of living in both fresh water and salt water. The Bull shark likes to live in shallow coastal waters less than 100 feet deep (30 metres), but ranges from 3–450 feet deep (1–135 metres). These are the animals that produce the largest and most dangerous incidents involving humans. Bull sharks average life span is about 27-28 years, but sometimes they live longer. The newly hatched sharks are birthed live. The Global Shark Tracker map shows sharks swimming around the world – with live ‘pings’ informing you of their location! The average female pregnancy cycle - gestation - runs for a time span of 10 to 12 months before she can bear the live young, and then typically producing a litter of three to ten pups. In some places, bull sharks in aquariums can live upwards of 20 or 25 years. Shark Image Gallery. Along with their great length, bull sharks are extremely heavy. They feature grey color on the top and white on the belly so that they can blend into their surrounding both above and below them in the water. Known as the Carcharhinus Leucas in the scientific community, it has a stocky figure and a broad, flat snout. As opportunistic predators, they also eat terrestrial mammals, birds, turtles, crustaceans, echinoderms, and dolphins. However, some of them are known to dwell in bodies of freshwater, like the bull shark which travels up to 4,000 Km up the Amazon River. Bull sharks mainly eat bony fish and smaller sharks, including bull sharks. The name "bull shark" comes from the shark's stocky shape (high body-width-to-length ratio), broad, flat snout, and aggressive, unpredictable behavior. Despite the fact that they live in shallow waters, and grow up to 11 ft. long, they are not responsible for very many shark bites. Advertisement. As is the case with any large species of shark, you must house bull sharks in huge tanks with plenty of swimming space. The young are about 70 cm (27.6 in) at birth. Females reach a length of 4 meters, males are smaller – their length does not exceed 2.5 m. The maximum documented weight of the caught bull shark was 316.5 kg.Body color is not striking – the gray back smoothly passing on the sides to the light belly. View Larger Image Freshwater sharks like the bull shark live in lakes and rivers - but they would not survive a Canadian winter. Most species of sharks live in the oceans. A bull shark's reproductive cycle begins at the end of the summer months when male and females start mating in shallow and low salinity river mouths. Bull sharks are viviparous, and a female shark will have between four and 10 sharks per litter. Carcharhinus leucas, Bull shark, (Carcharhinidae) Carcharhinus limbatus, Blacktip shark, (Carcharhinidae) Carcharhinus longimanus, Oceanic whitetip shark, (Carcharhinidae) Carcharhinus melanopterus, Blacktip reef shark, (Carcharhinidae) !Carcharhinus obscurus, Dusky shark, (Carcharhinidae) Carcharhinus plumbeus, Sandbar shark, (Carcharhinidae) None of these species are found in British waters. After gestating for 12 months, a bull shark may give birth to 1 to 13 live young. Once in the lakes, these sharks are safe from any and all large predators, and they live it easy until it’s time for them to return to the sea. Costa Rica is known to have schools of bull sharks living in various areas, and can be seen by divers who like to live on the wild side. But the average size of the bull sharks is usually 9 feet. Diet: Bull Sharks will eat almost anything including fish, other sharks and rays, turtles, birds, molluscs, crustaceans and dolphins. Bull sharks live in warm coastal waters in different areas of the world, including the Gulf of Mexico. Lakes and rivers probably don’t come to mind when you think of sharks. Bull Sharks diving center, is located in Playa Del Carmen, one of the most prestigious places in the Riviera Maya, since is in the middle of everything. Females are even larger, reaching a length of 14 or more feet. Only three sharks are considered to carry out unprovoked attacks on humans: the great white, tiger and bull. shares; Related Posts. The size of a Bull Shark is very large with them being about 7.5 feet long to 11 feet long and weighing around 200 to 300 pounds. 4. The gestation period for bull sharks is 12 months, after which they give birth in fresh water because the pups are born with a low tolerance for salinity. The two predators faced off just meters away from people fishing and children swimming. But bull sharks have special physiological adaptations that enable them to live in fresh water. Bull sharks have large, round, stocky bodies. The sea's temperature is not constant or all that predictable. In fact, we have over 40 species! Adult life in fresh water is not ideal, as most of the shark's food lives in the sea. Females are typically larger than males, with an adult female bull shark measuring an average 7.9 ft long and weighing 290 lbs, whereas the slightly smaller adult male averages 7.4 ft and 210 lbs. Among the three species of shark that are known to most commonly attack humans, the bull shark gets the least amount of press. Size: Adults can range from 2 to 3.5 metres in length and up to 230kg in weight. The mother bull sharks give birth in the mouth of the rivers and the shark pups head inland to the lakes. They are a requiem shark; a class of warm water shark that bear live young. Shark Image Gallery. Tiger sharks have a cool nickname. Photo Source: Wikipedia.com ; This banner is an affiliate link to diving tours sold by LiveAboard.com. You’re very unlikely to encounter one during a trip to the beach. Bull Shark and Salt Water Croc". In Lake Nicaragua, there’ve been stories of sharks up to four feet long jumping up waterfalls like salmon do! This special adaptation allows them to ‘regulate’ themselves and live successfully in a broad range of water salinity. That fact alone makes this one of the best known shark species. This property becomes more pronounced as the bull shark ages. They have been found swimming hundreds and even thousands of miles into major rivers including the Mississippi river. All the sharks listed have been tagged by OCEARCH, a non-profit research organisation set up by PhD students, looking to learn more about sharks and how to protect them. When they do bite, it is because they’ve mistaken a human for food (like trying to grab a fish that a diver has caught), or something startled the shark. Bull sharks are loners and only get together for mating purposes. One thing is for sure; sharks migrate to find new sources of food and they can travel up to hundreds of miles to do that. LOCAL SHARKS At least 21 species live in British waters all year round. Bull sharks mate during late summer and early autumn, often in freshwater or in the brackish water of river mouths. Advertisement . They can weigh anywhere from 90 – 230 kg. Contrary to popular belief, sharks do occur around the coasts of Britain. A full grown male can be up to 11 or 12 feet in length and weigh well over 750 pounds. Bull sharks can leave the saltwater and move into freshwater by going through a complicated biological process. Advertisement This is one of 43 shark species that can live in both seawater and freshwater. These sharks are usually solitary, but they sometimes feed as a group. Bull sharks do give live birth and can have as many as 13 baby bulls. The bull shark is an exception -- it often goes after larger prey. Great White Shark. | SHARK WEEK - Duration: 0 ... 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