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Sharks are found in every ocean in the world and are sometimes found out of their habitat in rivers and streams. There are around 368 species of sharks in the world.


According to PBS, the average life span of a shark is 25 years. Life expectancy can vary among shark species. Sharks tend to live much longer in the wild than in captivity.


Sharks appear to have evolved from fish between 400 and 450 million years ago, during the Early Devonian period. The earliest known sharks were fairly small and measured just 12 to 16 inches long. They appear to have lived near or on what is now Antarctica.


According to the Shark Foundation, sharks are found in most of the Earth’s oceans and seas. The highest shark biodiversity occurs in the warm waters of the tropics, but many species are found in Arctic and Antarctic waters as well. Some sharks, for example bull sharks, are even capable of swimming u


The United States and Australia boast the highest concentration of sharks, according to SurferToday.com. Sharks inhabit all of the world’s oceans, although research suggests as much as 70 percent of the oceans are devoid of sharks. According to Shark Foundation, the Antarctic Ocean holds nearly 40 s


Great white sharks are found in cool and temperate waters around major oceans throughout the world. These partially warm-blooded predators are rarely spotted in tropical waters because they may overheat.


Great white sharks have a life span of at least 60 years. At the very beginning, two to 12 baby sharks, or pups, grow inside their mother for a full year before she gives birth.


You can buy live sharks from SharkSupply.com and FreeMarine.com. However, shark ownership is tightly regulated at both the state and federal level, so make sure that it is legal for you to buy from these sources.


Roughly 400 shark species are scattered throughout all of the world's oceans in warm, temperate and cold waters. While some inhabit shallow, coastal regions, others are found in the extreme depths of the open water.


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.