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Basking shark

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Basking shark The basking shark (Cetorhinus maximus) is the second-largest living shark and fish, after the whale shark, and one of three plankton-eating shark species, along with the whale shark and megamouth shark. Adults typically reach 7.9 m (26 ft) in length. It is usually greyish-brown, with mottled skin. The caudal fin has a strong lateral keel and a crescent shape. The basking shark is a cosmopolitan migratory species, found in all the world's temperate oceans. A slow-moving filter feeder, its common name derives from its habit of feeding at the surface, appearing to be basking in the warmer water there. It has anatomical adaptations for filter-feeding, such as a greatly enlarged mouth and highly developed gill rakers. Its snout is conical and the gill slits extend around the top and bottom of its head. The gill rakers, dark and bristle-like, are used to catch plankton as water filters through the mouth and over the gills. The teeth are numerous and very small, and often nu...
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Richat Structure

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Richat Structure The Richat Structure, also called Guelb er Richât is a prominent circular geological feature in the Sahara's Adrar Plateau, near Ouadane, west–central Mauritania, Northwest Africa. In the local dialect, Richat means feather and it also is known locally in Arabic as tagense. Tagense refers to the circular opening of the leather pouch used to draw water from local wells. It is an eroded geological dome, 40 kilometres (25 mi) in diameter, exposing sedimentary rock in layers which appear as concentric rings. Igneous rock is exposed inside and there are spectacular rhyolites and gabbros which have undergone hydrothermal alteration, and a central megabreccia. The structure is also the location of exceptional accumulations of Acheulean archaeological artifacts.  
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Graffiti

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  What is the true meaning of graffiti? graffiti, the  form of visual communication , usually illegal, involves the unauthorized marking of public space by an individual or group. Graffiti can be understood as antisocial behavior performed to gain attention or as a form of thrill-seeking, but it also can be understood as an expressive art form. Where is graffiti legal in the US? Venice, California , United States. The Venice Graffiti Pit located in Venice Beach is world-famous for being an open and creative space for street artists. Why does graffiti have a bad reputation? Graffiti's bad reputation can harm your local community in several ways. Having  developed negative undertones with gang culture and hate crime , the appearance of graffiti alone can be enough to instill fear into your neighborhood. What is graffiti in simple words? Graffiti is  marks , scratching, or drawings made on a surface in a public place. It is often created with paint or spray paint (paint...
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