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The shark kidney excretes urea that is needed for the shark to have in its system so the shark does not become dehydrated from living in seawater. [14] Sharks hearts have two chambers. The shark heart's main importance is providing oxygenated blood to the entire body while filtering out the deoxygenated blood. [15]
The selected pictures are what we believe to be the best pictures on Wikipedia related to sharks.Any image that is featured or valued on the English Wikipedia, or featured, valued or considered high quality on Wikimedia Commons, and is used in one or more articles within the scope of WikiProject Sharks, automatically qualifies, and may be added below.
Sharkbook is a global database for identifying and tracking sharks, particularly whale sharks, using uploaded photos and videos.In addition to identifying and tracking sharks, the site allows people to "adopt a shark" and get updates on specific animals.
A Bay Area photographer captures juvenile white sharks "smiling" in the warm waters of Monterey Bay.
Nicknamed 'Deep Blue,' this great white is almost as long as the 22-foot-long boat the researchers were aboard near Guadalupe, Mexico, nearly 165 miles away from mainland. She is one of the ...
A white shark, tracked by the research group OCEARCH, pinged off the Treasure Coast for the second time in less than a week.. After surfacing off Vero Beach on Jan. 17, the 9-foot 6-inch male ...
A great white shark at Isla Guadalupe, Mexico. The following outline is provided as an overview of and topical guide to sharks: Sharks (superorder Selachimorpha) are a type of fish with a full cartilaginous skeleton and a highly streamlined body. The earliest known sharks date from more than 440 million years ago, before the time of the ...
The body transforms gradually until the kahuna can point the awe-struck family to the markings on the shark's body that correspond to the clothing in which the beloved's body had been wrapped. Such a shark aumakua becomes the family pet, receiving food, and driving fish into the family net and warding off danger.