21 Oct '11, 5am

Gelembung kentut ikan digunakan untuk berkomunikasi

Gelembung kentut ikan digunakan untuk berkomunikasi

Fish (some types of herring, to be specific) fart. Furthermore, the herring use flatulence to communicate , to alert other fish and form “protective shoals” at night. Yes, one species’ anti-social behavior is quite the opposite for another. Marine biologists have found that some types of herring, using air gulped from the surface and stored in their swim bladders, create high-frenquency sound bursts (up to 22 kilohertz) by expelling air through their anuses. From video, Robert Batty, senior research scientist at the Scottish Association for Marine Science in Oban, says that he and other scientists could actually see bubbles emanating from the fishes’ anal ducts. The sound produced was “very much like someone blowing a high-pitched raspberry” (go here to hear it). The noises seem to have the purpose of communication because the fish fart in darkness and when there is high f...

Full article: http://www.care2.com/causes/fish-fart.html

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