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Sharks live in every ocean of the world, with most species occupying waters no deeper than 7,000 feet. The Portuguese dogfish is the deepest-living shark and can be found at a depth of 12,000 feet. Some sharks, such as the bull shark, are capable of surviving in fresh water.


There are approximately 470 known species of shark in the world, but it's impossible to count the exact number of individual sharks on the planet. World Wildlife Fund estimates that more than 100 million sharks are killed each year for their fins.


Sharks move through the water with the help of their tail fins. The body of a shark is light as it is made of cartilage and not bones. It has a perfectly streamlined body. Its dorsal fins help it steer through the water.


A great white shark, or Carcharodon carcharias, is a large shark that inhabits the coastal waters of all oceans. It is the largest macro-predatory fish on Earth.


Sharks are fish, but they belong to the group called Chondrichthyes, or cartilaginous fish, which is a different scientific group than most types of fish. Common fish, such as tuna or salmon, all belong to the group Osteichthyes. The distinction is based upon the makeup of their skeletons.


A baby shark is called a pup. A female shark can produce between one and 100 pups at a time, depending on the type of shark.


As of 2015, In-N-Out Burger provides a location map and location search tools on its official website, In-N-Out.com. Customers can access these tools by clicking on the Location Finder icon on the company's home page.


Sharks are at the top of their respective food chain and are not usually hunted by other animals; however, sharks have been known to eat other sharks from time to time. There have also been a few sightings of moray eels eating small sharks.


Sharks do not have a specific name for the different sexes. Baby sharks are called pups


Sharks are apex predators, feeding on turtles, fish, seals, crabs and mollusks. They have adapted to feed on virtually everything in their environment. Their predation is a crucial element in maintaining population in different areas of the ocean, preventing prey animals from overgrazing any one are