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Selachii. Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and they have pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha[ 1 ] (or Selachii) and are the sister group to the Batoidea (rays and kin).
Great white shark. The great white shark (Carcharodon carcharias), also known as the white shark, white pointer, or simply great white, is a species of large mackerel shark which can be found in the coastal surface waters of all the major oceans. It is the only known surviving species of its genus Carcharodon.
Shark is the naming term of all members of Selachimorpha suborder in the subclass Elasmobranchii, in the class Chondrichthyes. The Elasmobranchii also include rays and skates ; the Chondrichthyes also include Chimaeras .
This isn't the first case of "shark cannibalism," said Jon Dodd, executive director of the Atlantic Shark Institute, which helped lead the study. Larger sharks eating smaller sharks is a common ...
Scientists have discovered a new species of ghost shark that lives in deep ocean waters near Australia and New Zealand. The Australasian Narrow-nosed Spookfish, or Harriotta avia, was found in the ...
Porbeagle shark was eaten by a warm-blooded predator, team says. Sulikowski said the team put two different tags on their subject sharks. The first tag, called a finmount tag, is located on the ...