Most beautiful Stingrays in the world | Amazing Stingrays | Animal world & B Music

Most beautiful Stingrays in the world

Stingrays are a type of sea ray that is related to sharks and is a cartilaginous fish. They are divided into eight families in the suborder Myliobatoidei of the order Myliobatiformes: Hexatrygonidae (sixgill stingray), Plesiobatidae (deepwater stingray), Urolophidae (stingarees), Urotrygonidae (round rays), Dasyatidae (whiptail stingrays), Potamotrygoni (eagle rays).
Stingrays can be found all around the world in tropical and subtropical coastal seas. Dasyatis thetidis, for example, lives in temperate oceans, whereas Plesiobatis daviesi lives in the deep ocean. Only freshwater stingrays and a few whiptail stingrays (such as the Niger stingray) can be found. The majority of myliobatoids are demersal (dwelling in the next-to-lowest zone of the water column), however others, such as pelagic stingrays and eagle rays, are pelagic.
There are around 220 stingray species, which are divided into 10 families and 29 genera. Stingray species are becoming increasingly threatened or vulnerable to extinction, especially as a result of unrestricted fishing. The IUCN has classified 45 species as fragile or endangered as of 2013. Because the status of some additional species is unknown, they are classified as data deficient.
The stingray's mouth is found on the ventral side of the animal. The mandibular arch of stingrays is only suspended by an articulation with the hyomandibula, a condition known as hyostylic jaw suspension. The upper jaw can move freely and protrude outward with this form of suspension. The teeth are modified placoid scales that shed and replace themselves on a regular basis. The teeth, in general, have a root implanted within the connective tissue and a visible section of the tooth that is wide and flat, allowing them to crush hard shelled prey bodies. Male stingrays have cusps, or pointy ends, on several of their teeth, indicating sexual dimorphism.
Spiracles are tiny apertures in fish and amphibians that allow them to breathe. Spiracles are the apertures behind a stingray's eyes. Stingrays' respiratory system is complicated by the fact that they take in water in two different ways in order to consume oxygen. Stingrays usually take in water through their mouths and then send it through their gills for gas exchange. Although this is effective, stingrays cannot use their mouths to hunt because they bury themselves in the ocean soil and wait for prey to swim by. As a result, the stingray begins to use its spiracles. They may take water free of sediment directly into their gills for gas exchange using the spiracles.
Stingrays' flattened body allow them to blend in with their surroundings. This is accomplished by stingrays disturbing the sand and hiding beneath it. Stingrays cannot see their prey after capture since their eyes are on top of their bodies and their mouths are on the undersides; instead, they use smell and electroreceptors (ampullae of Lorenzini) similar to sharks. While feeding, stingrays often settle to the bottom, leaving only their eyes and tails visible. Coral reefs are popular feeding areas for sharks, and they are generally shared during high tide.


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