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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 sp...
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).
5 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.
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....
Facts about many sharks from the eight orders of sharks from the Shark Research Institute (SRI). SRI conducts and sponsors rigorous, peer-reviewed field research about sharks and uses science-based information to educate and advocate for shark conservation policies and protections by the world’s governing bodies, including CITES.
- www.worldwildlife.org
- › Species
There are over 400 shark species. Learn about sharks, as well as the threats this species faces, what WWF is doing to protect its future, and how you can help.
There are about 360 different species of sharks, which are divided into 30 families. These different families of sharks are very different in the way they look, live and eat. Sharks have different shapes, sizes, colors, fins, teeth, habitats, diets, personality, method of reproduction and other attributes.
Jun 13, 2005 · 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 just 16 shark attacks each year and slightly less than one...
They are found in just about every kind of ocean habitat, including the deep sea, open ocean, coral reefs, and under the Arctic ice. Wherever they live, sharks play an important role in ocean ecosystems—especially the larger species that are more “scary” to people.
