The Great Hammerhead Shark Essay

Reproduction usually occurs once a year for hammerhead sharks. Male hammerhead sharks start to bite the female hammerhead sharks when they are ready to mate. Female hammerhead sharks give birth to their cubs in the warm water. They are able to have 12-15 cubs at once. Not all cubs will make it out of birth from the mother. The female hammerheads immediately leave the pups alone to take care of themselves. A good percentage of the cubs will survive after birth and it is unusual for all cubs to survive.

Blacktip Reef sharks can be located at warm places (59F to 75F) such as, the coral reefs of the Indo-Pacific and eastern Mediterranean, where they keep themselves mostly in the shallow warm waters and where they remain near their food supply. Some locations in where

Hammerheads are usually talked about as if it was just one creature but in a matter of fact the hammerhead shark comes in nine different species. The largest of the species is the Great hammerhead shark, they can range from 3.4m to 6m long and 225kg to 450kg in weight, the females are larger than the males but males mature at an earlier stage, although smaller sizes are more commonly found. The hammerhead sharks habitat is offshore in water depths of 300m, also in shallow coastal areas like continental shelves and lagoons. The hammerhead moves poleward when migrating to get to cooler waters when it is the summer season, which is caused by the abiotic factors. The young swim mostly in shallow waters along the shores almost all over the world

The adults they found had bony fish spines and a stingray spine embedded in the females jaw. Spear tooth sharks are not a known threat

There are many different species of hammerhead sharks, the largest of which is the Great Hammerhead, or Sphyrna Mokarran. The great hammerhead, though endangered, is found all over the world’s oceans, has many distinct physical features, and has a very diverse diet. The great hammerhead also gives live birth and is considered potentially dangerous to humans, but is still regularly fished for many reasons.

Scientist used to believe that this was a random movement. Science daily Stated in their Article Hammerhead shark migration gives new hope for conservation that (2017) “This study is the first to provide evidence that Great Hammerheads return to particular areas after migrations, rather than perhaps the more common perception of these sharks as "ocean wanderers."” (para 9) These sharks travel From up north Virginia waters to the waters of the Florida Keys. The journey takes about 3 months for the sharks. They move to the warm waters of Florida During the winter months. Then travel to the Cooler waters in Virginia During the

Sport fishermen often target hammerheads because they put up a tremendous fight, sometimes times literally fighting to the death… In many cases, the shark swimming away doesn’t equal survival. @predatorscience ‘s study showed that mortality can be delayed up to to 4 weeks after release. You can read that here, http://rjd.miami.edu/wp-content/uploads/2014/01/Gallagher-et-al.-2014.pdf

Recent studies from the article “Hammerhead shark migration gives new hope for conservation” discusses how these hammerhead sharks have been listed onto the IUCN (International Union for the Conservation of Nature) since 2007, also having certain regulation about international trade threatening species going extinct. Dr. Tristian Guthridge explains the benefits of understanding the shark’s behavior and more research of where these sharks are migrating, and possibly manage the time of fishing in the areas to eliminate human and shark altercations. With the wide spread of ocean water it can be difficult to study the traveling of sharks; however, the research group was able to tag the sharks “with both acoustic and satellite tag, and use photo identification and laser photogrammetry” (Charlie Huveneers).

According to McComb, Tricas, & Kajiura (2009), there are several features of the hammerhead shark that have changed over time. Most notable, though, is that the shape of the head has continually expanded over time, emerging the the unique shape for which this species has been understandably named. Along with the lateral movement of the head, the sharks also had to compensate for the changes through adapting a new eye shape and process for pupil dilation as the placement of the eyes had also moved. Scientists believe that this adaptation helped the sharks by providing the ability to adjust their vision to changing light intensities when transitioning from deep to shallow waters for hunting. Additionally, the newer eye location provided hammerhead sharks with a greater overlap in their binocular fields as compared to their shark relatives, limiting the amount of space affected by blind spots within visual field (McComb et al., 2009). Ultimately, these structural adaptations enhanced the shark’s ability to hunt and survive in various parts of the

Have you ever thought of a shark being gentle? The whale shark is known as a “gentle giant” because they do not attack humans, it would be very uncommon. Scientists still have not discovered many others, as they may say. The whale shark has many very cool characteristics that help them live their life.

Phoebe proctor 1-2 Beane Shark Information Paper sharks “Finally, back then, it was OK to demonize an animal especially a shark, because man had done so since the beginning of time, and, besides, sharks appeared to be infinite in number,” Peter Benchley. Sharks are interesting creatures that are being tagged for their own protection. Buzz has many important facts about his life you may not know. To begin they live in deep seas and oceans close to islands and some beaches.

There were sharks during the Jarrassic Period about 150 million years ago. Megalodon means big tooth. It was the biggest, most powerful shark to ever have lived. It is said that the Megalodon grew up to seventy feet in length. That is as long as three great white sharks! Scientist believe that it might have weighed up to 114 tons. Picture that being 1 adult male African elephants. I believe it could have swallowed a school bus Another ancient shark is called Cladoselache. It lived around 380 million years ago. There have been many of these sharks fossils found in North America.

Sharks are one of the most feared carnivores in the sea. There are 365 species of of sharks in the sea as we know today. All sharks are carnivores. Most of them eat live fish, including other sharks. A shark's most common natural enemy is an another shark. Most sharks eat their prey whole, or they tear off large chunks of the bodies. Some sharks crush their prey. Others take out small pieces off flesh from large fish. Sharks also feed on dead or dying animals. Sharks have the reputation of attacking human beings. But less than 100 shark attacks a year are reported throughout the world. Sharks are most common in warm seas and oceans. Whale sharks, are the largest shark known to man. Sharks are classified in the order

One reason the Great White Shark is the best predator is that is the perfect size. The other two sharks, the Megalodon and the Megalolamna, both had flaws. The Megalodon was huge, at 60 feet long. People would think this made them the best predator, but how would it find enough food? It would be nearly impossible to collect enough food to survive. And the Megalolamna? It is small for a shark, around 10 feet or so long. It would be a big target for large fish. So I realized both sharks had a flaw in size. But the Great White Shark is in the middle, at around 20 feet long, according to the article on page 1 paragraph 2. It is perfectly sized- not too big, not too small. That is actually why i chose the shark in the first place.

Introduction: Hey everyone, I’m Nino and today I will informing you all about the most fierce and feared predator in the sea. In this speech I will be discussing the evolution, the physiology, its ecological niche and propose a postulate for the future health and survival of the Great White Shark. The Great White is scientifically known as the Carcharodon carcharias and is considered a carnivorous killing machine which is at the top of its food chain. This fish has been around for hundreds of millions of years and its evolution has enabled it to develop some extraordinary abilities