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In response to a question about whether or not sharks sleep and, if they do, how do they swim while unconscious, I wrote: ... But when it comes to whether or not sharks sleep, we just don't know. There have been reports from all over the globe, including Mexico, Japan, and Australia, of sharks resting motionless in caves.
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www.elasmo-research.org/education/topics/b_sleep.htm
www.elasmo-research.org/education/topics/b_sleep.htm
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Shark - Wikipedia, the free encyclopedia
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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 420 million years ago, before t...
en.wikipedia.org/wiki/Shark
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Your teacher is talking about a swim bladder not a swim tummy. Anyway the swim bladder keeps them from sinking, yes, but it has nothing to do with why some sharks need to keep swimming. Some species have to keep moving to keep water going o...
http://answers.yahoo.com/question/index?qid=20090603054...
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Welcome to Animaland, the ASPCA's website for children. ... Do sharks sleep? - Brent ... It's just that sharks don't sleep the way you or I do. Sharks can't exactly snooze the night away in a bed or nest, but they do slow their brain functions down and just chill. Scientists describe this fishy state as kind of like daydreaming.
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www.aspca.org/site/PageServer?pagename=kids_ask_sharkss...
www.aspca.org/site/PageServer?pagename=kids_ask_sharkssleep
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The girl pointed over to the bar where a young man in a pin-striped navy blue suit had his face down on the bar. The man’s dark brown drink was full beside him. ... “Sure. Can’t he go now though, go sleep it off. That’s all you need is a good place going all straight to hell with these kind of people.”...
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www.writers.net/writers/books/17118
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Fish do sleep : For answers to questions and conundrums-CHECK OUT WONDER QUEST ... Certain sharks (the Reef Whitetip, Tiger, and Great White Sharks) "sleep" during the day and hunt at night. Streamlined sharks, like hammerheads, normally keep moving to push oxygen-bearing water over their gills to breathe.
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www.wonderquest.com/fish-sleep.htm
www.wonderquest.com/fish-sleep.htm
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To help add to much-needed baseline data on sharks, SeaWorld participates in nurse shark research in the Dry Tortugas, a critical habitat for shark pups. ... Whales sleep in the water, usually at the surface. Studies suggest that, unlike in land mammals, deep sleep in whales probably happens in only one hemisphere of the...
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www.seaworld.org/ask-shamu/faq.htm
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Tracy Bonham - Sharks Can't Sleep lyrics. Saw a shark today Ate a man and then, just swam away But it wasn't OK No, it wasn't OK Saw a... ... Sharks Can't Sleep lyrics widget:
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www.lyricsmode.com/lyrics/t/tracy_bonham/sharks_cant_sl...
www.lyricsmode.com/lyrics/t/tracy_bonham/sharks_cant_sleep.html
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Sharks need to keep water moving over their gills so that they receive oxygen. So that seems to mean that they need to keep moving all the time...or do they? How do sharks sleep? Even though sharks need to keep water moving over their gills to receive oxygen, some sharks need to keep moving to do this, while others don't.
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marinelife.about.com/od/fish/f/howdosharkssleep.htm
marinelife.about.com/od/fish/f/howdosharkssleep.htm
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