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The first shark-like chondrichthyans appeared in the oceans 400 million years ago, [1] developing into the crown group of sharks by the Early Jurassic. [2] Listed below are extant species of shark. Sharks are spread across 556 described and 23 undescribed species in eight orders. The families and genera within the orders are listed in ...
While the majority of sharks are solely marine, a small number of shark species have adapted to live in freshwater. The river sharks (of the genus Glyphis) live in freshwater and coastal marine environments. The bull shark (Carcharhinus leucas), can swim between salt and fresh water, and are found in tropical rivers around the world.
It contains two extant and four extinct species. The most widely known species still surviving is the frilled shark (Chlamydoselachus anguineus). It is known as a living fossil, along with Chlamydoselachus africana, also known as the southern African frilled shark, which is only found along coastal areas of South Africa. The only two extant ...
"The shark takes off because clearly, that's not what the shark was interested in. If you look at maybe something like a six-foot bull shark, just by the sheer size, it's going to do a lot more ...
A unique view of sharks using teamwork to hunt took the top prize in The Royal Society’s annual photography competition.
The Atlantic sharpnose shark is a small shark in comparison to others. The Atlantic sharpnose shark's maximum species length is known to be about 110–120 cm (3.6–3.9 ft). Although its average adult size tends to be about 91.4–99 cm (3.00–3.25 ft). Reports exist of these sharks living up to 19 years in the wild. [2]
The megamouth shark is an extremely rare species of deepwater shark, and the smallest of the three filter-feeding sharks. Since its discovery in 1976, only a few megamouth sharks have been seen, with 55 specimens known to have been caught or sighted as of 2012, including three recordings on film.
The top 10 ‘coolest street in the world’ High Street, Melbourne. Hollywood Road, Hong Kong. East Eleventh, Austin. Guatemala Street, Buenos Aires. Commerical Drive, Vancouver. Jalan Petaling ...