Black Tip Reef Shark Research Paper

Sharks have been creatures that can date back to over 450 billion years, and have survived through all disaster and still live on Earth today. This is a great feat for anything to stay in existence for that amount of time, and hopefully sharks can continue to live on this Earth and not go extinct. There are hundreds if not thousands of species of shark from when they first swam Earth’s oceans to when they continue to swim the same oceans. The study of sharks is a very interesting and extraordinary topic, being able to put together images of what sharks used to look like compared to sharks now is just amazing. In this vast amount of time sharks have spent on this Earth there has been many things that has changed, through evolution and adaptation. Through research and personal opinion I plan to show how sharks have evolved, what has changed through evolution and the history of

Both these sharks feed on fish and the Great White is also known to feed on larger prey. The Great White Sharks have been known to attack humans swimming and surfing in the seas. The Tiger Shark is approximately 4.5 meters long and has a reputation for eating a wide range of animals and even inanimate objects. They have found license plates in the stomach of a Tiger Shark. Because of its discernment regarding food, this shark is one of the most dangerous ones for human attacks. The Sand Tiger Shark, not to be confused with the Tiger Shark, even though large, is relatively peaceful and will only attack if provoked. The Nurse Shark will reach approximately 4.3 meters and favor shallow temperate waters. The Blue Shark prefers the deep, cooler waters of the tropical and temperate oceans. They can give birth to large litters from 25 to 100 pups at one time. The Mako Shark vary in length between 2.7 to 4.5 meters. These sharks are in the same family as the Great White Sharks so they can be fairly aggressive. The most aggressive shark is the Bull Shark. This shark is known as being unpredictable and aggressive even towards humans. Many of the attacks and fatalities recorded each year is from this shark. The Bull Shark is found in warm, shallow waters and can live in both freshwater and saltwater environments. In fact, it is said that JAWS was based on a Bull Shark, but since the Great White is a better looking,

Shark mating rituals vary from the size of the shark and its specie. In smaller, more flexible species, the male coils around the female, while the male of the larger specie orients himself parallel and head-to-head with the female (Woums & Demski 1993). Some species mating rituals also consists of males biting females on the pectoral fins or the middle of the back to hold on to them (Woums & Demski 1993). The female will often bear scars or marks, after the ordeal. Due to the fact that sharks are cold blooded animals, there is no precise gestation time. The development of the embryo will depend solely on the temperature of the water, however, the gestation period can last anywhere from 2 months to 2 years (Woums & Demski 1993). Within shark species there are two methods of reproduction. In some cases a female shark will lay eggs in a coastal nursery where the presence of other sharks are absent. And in other cases, usually in the larger sharks, females give birth to live offspring (Wourms & Demski 1993). In which case the young are born fully developed, and once they are born they shoot away fast or they risk being eaten.

They also prey on smaller fish such as skates, eels, herring, and cod. On occasion remains of larger mammals such as seals, moose, polar bears, and reindeer have been found in their stomachs. Its even speculated that these sharks ambush seals, with their ice holes being like beacons. Female Greenland sharks are ovoviviparous, meaning that they retain the developing embryo inside of their bodies to hatch instead of depositing it into the mud. While the gestation period is unknown there are usually 10 pups per litter that are about 90 centimeters

Humans are just like sharks. Humans eat meat they have live babies and sharks make mistakes just like humans. Sharks are very interesting creatures but people don’t give them a chance because people make them sound like they are terrible beasts. Many people are more likely to get killed by a car crash then by a shark. If people keep killing sharks for fins there will be no more sharks.

If a bull shark and hammerhead shark were to fight, the bull shark would win. Bull sharks are the most dangerous sharks in the world! Along with this, bull sharks have special adaptations, and they hunt in shallow waters. Although hammerhead sharks have great vision, the shape of their heads, and the placement of their eyes cause them to have a huge blind spot right in the middle of their head. This makes it easier for other sharks to win a fight against the hammerhead.

The Australian Grey Nurse Shark is also known as the Spotted Ragged-Tooth Shark and as the Sand Tiger Shark ("Australian Threatened Species”). The species is identified by its gray to gray-brown coloration, the possible presence of reddish/brownish spots on the caudal fin and posterior half, their countershading, and by its two almost equally sized dorsal fins. They are known to grow over 3.6 meters in length with the males and females maturing at different lengths, 2.21 meters and 2.2 meters, respectively (McGrouther, 2015). Females also mature significantly later at 9-10 years than their male counterparts, who mature at 6-7 years. Their diet consists of fish,

For this discussion, I chose to examine the reproductive nature of mountain lions and hammer head sharks. Mountain lions are solitary cats that live in various mountainous regions of north and south America, but a male and female come together socially in order to mate during the 3-10 day estrus period. Due to their solitary nature, mountain lions rely on scent marking in different territory as well as a mating call of the female in order to initiate the potential for sex. Typically, when a male and female find each other; they spend several days together during the mating period and he may hunt for her and run mating circles around her. Mountain lions are polygynous and both the males and females will mate with multiple individuals throughout

The Mako shark is a very unique species of cartilaginous fish in the Lamnidae family (Col-Spector, Audrey, “MAKO SHARK- Enchanted Learning Software"). This pelagic swimmer is the fastest shark that has ever been observed in the ocean, clocking in at speeds up to 60 mph (Col-Spector). Its streamlined body allows it to swim at faster speeds than most other fish, making it a highly successful predator. “Schooling fish, including tuna, herring, mackerel, swordfish, and porpoise” are popular among the diet of the Makos (Col-Spector). Although they like to prey specifically on schooling fish, Makos eat just about anything they come across (Col-Spector). The Mako sharks physical features and social characteristics is what sets it apart from other species of the deep.

Donohue, Patrick and Log, Destin. “Sharks 101.” State and Regional Newspaper, 7 September. 2006. LexisNexis Academic. Web. 28 May. 2016.

Pacific sleeper sharks, which are also known scavengers, can glide through the water with little body movement and little hydrodynamic noise making them successful predators. They feed by suction and cutting of their prey. They have large mouths that can inhale prey and their teeth cut up any pieces that are too large to swallow. They show a characteristic rolling motion of the head when feeding. Only in Alaska has the shark's diet been studied - most sharks' stomachs contain remains of giant Pacific octopus. They are also known to feed on bottom-dwelling teleost fishes as well as soles, flounders, Alaska pollock, rockfishes, shrimps, hermit crabs, and even marine snails. Larger Pacific sleeper sharks are also found to feed on fast swimming

Sharks are some of the world's most dangerous and efficient predators, known for dominating the oceans for millions of years. Thanks to movie classics like Jaws they are often exclusively perceived as large, powerful, killing machines, but the truth is sharks come in a wide range of shapes and sizes. Recently, scientists found the carcass of what's considered the smallest shark in the world. The distinctive “pocket shark” was discovered off the Gulf Coast, and is the second specimen ever found.

The black tip shark the biggest black tip shark is around 8.4 feet the average size is 4.9 feet and at birth is 15-28 inches most black tip sharks stay in shallow clear water they are mostly near humans swimming sites

Do you know what a mako shark is? They are curious beings and are closely related to the great white shark. Tagged by ocearch, Lazarus and other sharks are helping the ocean’s ecosystem.

a) this is technique is where there’s a long line with baited hooks that can stretch over 60 miles across the ocean.