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BookmarkSharks are a group (superorder Selachimorpha) of fish, with a full cartilaginous skeleton and a streamlined body plan.
Sharks have keen olfactory senses, with some species able to detect as little as one part per million of blood in seawater.
In general, sharks swim at an average speed of five miles (8.25 kilometers) per hour, but when feeding or attacking, the average shark will reach speeds upwards of twelve miles (19.25 kilometers) per hour..
For more information about the topic Shark, read the full article at Wikipedia.org, or see the following related articles:
Whale shark — The whale shark (Rhincodon typus) is a distinctively-marked member of the subclass Elasmobranchii of the class Chondrichthyes. It is the largest ... > read more
Vertebrate — Vertebrates are members of the subphylum Vertebrata (within the phylum Chordata), specifically, those chordates with backbones or spinal columns. ... > read more
Great White Shark — The Great White Shark (Carcharodon carcharias), also known as White Pointer, White Shark or Amaletz, is an exceptionally big lamniform shark found in ... > read more
Cuttlefish — Cuttlefish are animals of the order Sepiida, and are marine cephalopods, small relatives of squids and nautilus. Cuttlefish have an internal shell, ... > read moreNote: This page refers to an article that is licensed under the GNU Free Documentation License. It uses material from the article Shark at Wikipedia.org. See the Wikipedia copyright page for more details.
