Lemon Sharks
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Lemon Sharks (also known by their scientific name, Negaprion brevirostris) belong to the family Carcharhinidae. They can grow to be 11 feet (3.4 metres) in length and can be found in shallow waters. They are known to inhabit(and return to) specific nursery sites (habitats where juveniles often occur) for breeding. The lemon shark's main asset is its electroreceptor, which generates an electric feild to help it locate prey. They are also known to be pack animals, give birth to live young, and be generally harmless to human population.
Habitat Selection
Lemon sharks tend to select areas characterized by warm water and a rocky or sandy bottom. They are known to avoid possible homes with abundances of sea grass and therefore perfer mangroves.
Whale sharks
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The Whale Shark (also known by their scientific name, Rhincodon typus,) is known to be a filter-feeding species of carpet shark, as well as being the largest non-extinct shark species. The largest seen whale shark measures up to 61.7 feet (18.8 meters) and holds many acheivements for size. It is the only member of the genus Rhincodon, the only non-extinct species of the family Rhincodontidae, which belongs to the subclass Elasmobranchii in the class Chondrichthyes.
They are known to inhabit open waters inside of tropical oceans, notably being rarely found in areas under 21 °C (70 °F.) Referencing studies about free-swimming sharks, it was concluded that the average lifespan of a whale shark should be around 80-130 years.
Distinguished after a 15ft shark was harpooned, the whale shark was described and named by Andrew Smith, remarking that the shark's size resembled that of a whale's.
great white sharks
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The great white shark (Carcharodon carcharias), also known as the white shark, white pointer, or simply great white, is a species of large mackerel shark which can be found in the coastal surface waters of all the major oceans. It is notable for its size, with the largest preserved female specimen measuring 5.83 m (19.1 ft) in length and around 2,000 kg (4,410 lb) in weight at maturity. However, most are smaller; males measure 3.4 to 4.0 m (11 to 13 ft), and females measure 4.6 to 4.9 m (15 to 16 ft) on average. According to a 2014 study, the lifespan of great white sharks is estimated to be as long as 70 years or more, well above previous estimates, making it one of the longest lived cartilaginous fishes currently known.Great white sharks can swim at speeds of 25 km/h (16 mph) for short bursts and to depths of 1,200 m (3,900 ft)
The great white shark is an apex predator, as it has no known natural predators other than, on very rare occasions, the orca. It is arguably the world's largest-known extant macropredatory fish, and is one of the primary predators of marine mammals, up to the size of large baleen whales. This shark is also known to prey upon a variety of other marine animals, including fish, and seabirds. It is the only known surviving species of its genus Carcharodon, and is responsible for more recorded human bite incidents than any other shark.
The species faces numerous ecological challenges which has resulted in international protection. The International Union for Conservation of Nature lists the great white shark as a vulnerable species, and it is included in Appendix II of CITES. It is also protected by several national governments, such as Australia (as of 2018). Due to their need to travel long distances for seasonal migration and extremely demanding diet, it is not logistically feasible to keep great white sharks in captivity; because of this, while attempts have been made to do so in the past, there are no known aquariums in the world believed to house a live specimen.
The novel Jaws by Peter Benchley and its subsequent film adaptation by Steven Spielberg depicted the great white shark as a ferocious man-eater. Humans are not a preferred prey of the great white shark, but the great white is nevertheless responsible for the largest number of reported and identified fatal unprovoked shark attacks on humans, although this happens very rarely (typically fewer than 10 times a year globally).
The great white is the sole recognized extant species in the genus Carcharodon, and is one of five extant species belonging to the family Lamnidae. Other members of this family include the mako sharks, porbeagle, and salmon shark. The family belongs to the Lamniformes, the order of mackerel sharks.
Bullhead Sharks
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The bullhead sharks are a small sub-species of modern sharks. The nine living species are placed in a single genus, Heterodontus, in the family Heterodontidae. All are relatively small, with the largest species reaching just 1.65 metres (5.5 ft) in maximum length. They are bottom feeders in tropical and subtropical waters.
The Heterodontiforms appear in the fossil record in the Early Jurassic period, well before any of the other Galeomorphii, a group that includes all modern sharks (except the dogfish and its relatives.) However, they have never been common, and their origin probably lies even further back.
