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Cool facts about blue sharks

User Fedmest
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Female blue sharks have adapted to the rigorous mating ritual by developing skin three times as thick as male skin.
They reach up to 4 meters in length (13 feet) and weight up to 205 kilograms (450 pounds)
These sharks are migrants and love the deeper waters all over the world, except for the Polar Circle. They enjoy depths of around 400 meters (1,312 feet). Their desired temperature is 10 to 20 degrees Celsius (50 to 68 degrees Fahrenheit).
The species prefers to eat squid. But they will consume much more than that, including bony fish, smaller sharks, sea birds, shrimp, and lobster.
This is the most fished shark of all shark species. They are used for their fins, shark skin, tails, and flesh. Sometimes their teeth and jaws are taken for commercial uses as well. There has been much concern recently about over fishing from both commercial fisheries as well as game fisheries. Approximately 10 to 20 million of these sharks are killed due to human capture every year.
This species has no other natural enemies besides Humans.This species is non aggressive towards humans. The only known attacks are the result of the shark feeling threatened or biting after a human capture of the shark.
User Fabio Beltramini
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Blue sharks have electroreceptors concentrated in their heads. They can sense a heartbeat of another fish from several miles away. The organ is called the “ampullae of Lorenzini.”They are among the few Viviparous sharks in the ocean. Females give birth to live pups.When mating, male sharks are very aggressive. They are seen biting the females but that is part of mating. The skin of female sharks is 3 times thicker than male skin.Blue Sharks survive poorly in captivity. Most of them survive for less than a month. Although the record of blue shark kept at captivity is 7 months.Blue Sharks are seen jumping out of the sea in search of their prey.As Blue Sharks are often seen in groups, and sometimes referred to the “wolves of the sea.”The main predators of blue sharks are humans. Approximately 15 to 20 million Blue Sharks are killed every year due to humans who capture them. They are hunted for their skin, fish oil, teeth and fins.Blue sharks are listed as “Near Threatened” in the Red list of IUCN.
User Cptstarling
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