Most swimming in fish is the result of the muscles on the sides of their bodies. You might not ever have thought about how you walk or run, but what you are doing is pushing off the ground with your foot to move you forward. Fish use the mu...
http://wiki.answers.com/Q/How_do_fish_swim
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How do fish swim? How fast? ... Can fish swim backwards? ... Do all fish swim in the horizontal position?
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www.nefsc.noaa.gov/faq/fishfaq1b.html
www.nefsc.noaa.gov/faq/fishfaq1b.html
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How do fish move so easily in water? Sure, they have fins and gills, but how do they move up and down in the water? It has to do with density and air. Watch this movie and find out! ... This movie is in Quick Time format. If you need a plug-in to view it, you can get it here.
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littleshop.physics.colostate.edu/Videos/Sinking&Floatin...
littleshop.physics.colostate.edu/Videos/Sinking&Floating/howdofishswim/howdofishswim.html
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How Fish Swim ... Eels and other snake-like varieties of fish swim by pushing themselves in a wave-like fashion through the water. Their movement through the water is similar to a snake moving on land. This is a relatively slow type of locomotion and a good deal of energy is needed to propel (move) the fish.
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www.flmnh.ufl.edu/fish/Education/HowSwim/HowSwim.html
www.flmnh.ufl.edu/fish/Education/HowSwim/HowSwim.html
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How Fish Swim Information Website ... Many fishes swim by contracting and relaxing a succession of muscle blocks, The alternate shortening and relaxing of successive muscle blocks, which bends part of the body first toward one side and then toward the other, results in a series of waves traveling down the fish's body.
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www.lookd.com/fish/swimming.html
www.lookd.com/fish/swimming.html
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In the past I have heard tell that you should never pee in the Amazon River lest a certain fish swim upstream into your penis and lock its fins in place in your urethra. Of course I always dismissed this as a tall tale spread by the natives to scare tourists.
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www.straightdope.com/columns/read/2551/can-the-candir-f...
www.straightdope.com/columns/read/2551/can-the-candir-fish-swim-upstream-into-your-urethra
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This is in reference to your column "Can the candirú fish swim upstream into your urethra?" (May 19, 2000). I recently heard a talk by a visiting scholar who was researching the candirú.
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www.straightdope.com/columns/read/2288/can-the-candir-f...
www.straightdope.com/columns/read/2288/can-the-candir-fish-swim-upstream-into-your-urethra-revisited
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Alvarado told Wired that, though the fish are not yet completed (They only swim at 10-percent of an actual fish's speed, and still rely on wired power.), the refined design could eventually assist the Navy by conducting underwater reconnaissance, or construction, utility and oil companies by inspecting subaqueous pipelines.
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www.switched.com/2009/08/25/robo-fish-swims-just-like-t...
www.switched.com/2009/08/25/robo-fish-swims-just-like-the-real-thing/
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Not all fish swim the same way. Most fish use their pectoral and pelvic fins, which are located along their sides, to steer or maneuver. These fins act as brakes or rudders to help the fish stop, turn or go up or down or, in some cases, backward.
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www.mdc.mo.gov/kids/out-in/2001/02/2.htm
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