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Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the Batoidea ( rays and kin).
Jul 25, 2019 · Sharks 101 | National Geographic. Sharks can rouse fear and awe like no other creature in the sea. Find out about the world's biggest and fastest sharks, how sharks reproduce, and how some...
learn about some of the 400+ species of sharks. All organisms have scientific names, a name that is unique for each species. Every species has two Latin names which allow people to be certain they are talking about the same creature no matter what language they speak.
4 days ago · shark, any of numerous species of cartilaginous fishes of predatory habit that constitute the order Selachii (class Chondrichthyes ). Sharks, together with rays and skates, make up the subclass Elasmobranchii of the Chondrichthyes.
The oceanic whitetip, porbeagle and three hammerhead species are some of the shark species of concern for WWF, where the impact of trade is contributing to declines in populations. Millions of these sharks continue to be fished annually to supply the persistent demand for their fins and meat.
Sharks can rouse fear and awe like no other creature in the sea. Find out about the world's biggest and fastest sharks, how sharks reproduce, and how some species are at risk of extinction.
50 Amazing Shark Facts. Sharks are really amazing creatures. Did you know there are around 500 known species of sharks? Here is a list of fifty amazing facts that are all about sharks! Sharks live in every ocean on the planet. Sharks have eight orders of classification depending on their physical characteristics. Sharks are cartilaginous.
Jun 13, 2005 · ANIMALS. NEWS. Shark Facts: Attack Stats, Record Swims, More. A round-up of facts about one of the most iconic fishes. By Brian Handwerk. June 13, 2005. • 7 min read. The United States averages...
There are more than 500 species of sharks swimming in the world’s ocean. Yet when most people think of these cartilaginous fish, a single image comes to mind: a large, sharp-toothed and scary beast. That generalization does sharks a huge disservice, as they have far more variety than that.
There are 56 species of sharks, skates and rays (collectively known as elasmobranchs), which frequent the waters of Canada’s coast, and they can be found anywhere from the shifting waters of Bay of Fundy, to the frigid depths of the Arctic Ocean, to the kelp forests of the Pacific.
