This is a weird creature that has just been caught from the sea. Seeing it, what animal do you think of, is it a horse, a cow, or a pig? Obviously, it has a pair of nostrils that resemble a pig's nose. What's more interesting is that when it was just lifted from the water, it made a pig-like purr.
On September 3 this year, an Italian naval officer grabbed a weird creature from Elba Island near Tuscany in the Mediterranean, and uploaded the photo to the Internet. From the side, His whole body is gray, slightly reddish, with tall dorsal fins, and looks like a small shark.
From the front, it has a pair of pig noses and bulging red eyelids. It is precisely because it looks so strange that these photos have caused heated discussions on the Internet, and people are most concerned. The question is, what kind of organism it is, and whether scientists have conducted in-depth research on it.
In fact, this fish is not discovered for the first time. It has been found several times before. Because of its flat head, wide eyes and pink nose, some people call it "pigfish", in fact its name It is called dogfish ( Oxynotus centrina ), is one of the family members of rough shark .
When you hear the word shark, you must think that dogfish is very big. In fact, it is not that big. It is only about 50 cm in length when it matures, and generally does not exceed 1 meter in length. The most obvious feature of dogfish Have high raised eyes,The vertically elongated nostrils feed on dogfish worms, crustaceans and molluscs.
The dogfish habitat ranges from Norway to the East Atlantic Ocean in South Africa, including the entire Mediterranean. Dogfish like to be 60 to 670 meters below the sea surface, and like to glide close to the seabed to move. sometimes hovering on the seabed Coral algae and muddy bottoms swim slowly on sandy or muddy surfaces, and sometimes on continental shelves and upper slopes.
Although dogfish have little commercial value and are inedible, fishermen sometimes catch dogfish when they are fishing. Fishermen think that catching dogfish will bring bad luck at that time. It was released, but the dogfish died after the release. has never been reported to have survived.
Dogfish’s spiny dorsal fin and relatively large body make them vulnerable to fishing operations. In July 2019, a fisherman in the Mediterranean trawled a dogfish. It was like a dog born without skin or The toothed "pigfish", surprisingly, this "pigfish" was 3 years old and died in the fishing net.
The marine environment is changing, coupled with by-catch by humans, the number of dogfish has been declining in the past ten years, especially Adriatic, people are in When fishing for fish, it was found that the number of dogfish was decreasing. Later, it was even announced that the dogfish of Adriatic had been extinct, but it was discovered again later.
dogfish has been on the International Union for Conservation of Nature (IUCN) Red List of Endangered Species,Therefore, dogfish is a protected animal. According to biologists, although dogfish have a lot of data and are not endangered, the species is fragile and we need to protect it. For interesting scientific exploration content, please follow the only WeChat public account: Interesting Exploration
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