Thursday, December 23, 2010

How does a shark breathe?


As with other fishes, sharks breathe by extracting oxygen when seawater passes through their gills.

Shark gills are just behind a sharks head and they are not specially covered, like in most fish.

Water pass thorough their gills while sharks are swimming making impossible for most of them to stay still as otherwise they would drown. This process is called ram ventilation.

13 comments:

  1. cool. so to win a fight with a shark just hold him still...

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  2. haha ram ventilation.. sorry, my mind goes to odd places

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  3. whale sharks have the shittiest gills...

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  4. Aren't you supposed to punch a shark in the gills if they attack you?

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  5. hmm so actually fish can drown in water. that's interesting

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  6. Yeah, I never thought that fish have to keep moving otherwise they won't get oxygen. Very interesting

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  7. man crazy idea of a blog
    loved it
    thanks

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  8. While I know this to be true, the idea of a fish drowning has always struck me as odd.

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