Marine life always offers various unique things, especially mysteries that are not widely known. Like the appearance of a shark with a pig-like face and snorting. The shark with the scientific name Oxynotus centrina has a flat head with wide eyes, a pink snout, large nostrils, and prominent skin denticles. At first glance it looks like a pig.
Researchers named it the angular roughshark shark. In nature, this pig shark is found in the eastern Atlantic Ocean from Norway to South Africa, and the Mediterranean Sea. It is known to be very rare. This pig shark usually lives at a depth of 100 to 800 meters below sea level. This shark species is also listed on the IUCN Red List of Threatened species, meaning it is classified as an endangered animal.
At birth, this shark is less than 25 centimeters in size and when mature can reach around 1.5 meters. For the size of a shark that is known to be fierce and powerful, the pig shark tends to be smaller and does not seem too aggressive, for example like a white shark. With a size that is not too large, the shark has a thick body and is gray-brown in color. Complete with two dorsal fins that are as large as sails.
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The main prey of the pig shark are worms, crustaceans, and mollusks. It usually moves by gliding on the seabed. Sometimes it also floats above the sandy or muddy seabed "This shark is usually called 'pig fish' because when it comes out of the water, it makes a kind of growl," said Yuri Roberto of the Elba Aquarium in Italy as quoted by Live Science.
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There is not much information and research for this fat shark. one of them is about the teeth of this pig shark. It has very large and prominent molars, somewhat different from other types of sharks. So far scientists do not know exactly why this happens, but it may help protect against larger predators. Because the lifestyle of this shark is to spend most of their time swimming above the seabed looking for food. They tend to move slowly, and for that their large nose is used to suck their prey.
They have a set of sharp lower teeth like knives for slicing meat, as well as cone-shaped upper teeth that help grip slippery prey. The results of one study showed that the angular pig shark also eats eggs like other sharks. In addition to finding shark embryos in stomachs, in 2015, scientists reported that these sharks had been specifically observed eating elasmobranch eggs in captivity.
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