All animals undergo a process of constant change in their physical appearance and behavior. These changes occur over millions of years and the species that survive do so because during their evolution they have perfected certain strategies that have allowed them to thrive better in the environment they inhabit. An example of this successful development is the great hammerhead shark. The great hammerhead shark, also known as the Sphyrna mokarran, is a pelagic shark found worldwide in warm-water tropical regions. Great hammerhead sharks are the largest species of hammerhead shark. The great hammerhead shark is distinguished from other hammerhead sharks by the shape of its “hammer” (called “cephalofoil”), whose front margin is broad and almost straight, and by its large sickle-shaped first dorsal fin. (Wikipedia, 2014)The function of the hammer is largely unknown but many theories have been put forward as to its purpose. The most popular are that it helps the great hammerhead shark scan larger areas of the ocean floor for food and that it maximizes the area of ​​sensory organs known as ampullae of Lorenzini which can also detect chemical, physical and thermal changes in water. like electric fields. (MarineBio.org, 2014)The body of the great hammerhead shark is the largest of the nine hammerhead shark species and is gray-brown to olive green above and off-white below. They have strongly serrated triangular teeth. The length of the great hammerhead shark can vary from four to six meters and weigh between 230 and 450 kg. Great hammerhead sharks have spectacular vision with their eyes positioned at either end of its broad-shaped head. The positioning of the eyes gives the hammerhead shark panoramic vision and...... middle of paper ...... uh. Like most pelagic sharks, the hammerhead must keep moving not only to stay off the bottom, but also to help it breathe. if a hammerhead shark stops swimming, it will drown. the flat head of the hammerhead shark acts like a wing to hold it up from below. Great hammerhead sharks are not known to be territorial but they will instinctively do what they can to protect their needs. One of the main threats to great hammerhead sharks is from the fishing industry. The hammerhead shark is valued for its fins for shark fin soup, as well as its liver oil for its vitamins, its skin for its leather, and its meat for its fish meal. Catastrophic losses have occurred in the Eastern Atlantic, where directed fishing is unregulated. Conclusion: The great hammerhead shark is endangered because of human interaction, not because of its strategies. Their strategies did not incorporate human interaction.