秃公
加入时间: 2006/09/12
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作者：秃公 在 寒山小径 发贴, 来自 http://www.hjclub.org
Fish 'farts' a form of communication?
Last Updated: Thursday, November 6, 2003 | 10:15 AM ET
CBC News
Herring make farting sounds at night, Canadian and British scientists say.
Scientists knew herring have an excellent sense of hearing, but now researcher Ben Wilson of the University of British Columbia Fisheries Centre in Vancouver and his British colleagues investigated their secret noises.
At night, herring squeeze bubbles out of their swim bladders through an anal pore.
The action produces distinctive sounds, resembling a person blowing raspberries or farting.
Wilson is now trying to figure out why.
The fish tend to make noise more often when in the company of others, which suggests it plays a social role, the researchers say.
If so, sound may be more important in herring than scientists had thought, and they may need to look into the effects of noise pollution from humans.
作者：秃公 在 寒山小径 发贴, 来自 http://www.hjclub.org |
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Fish 'farts' a form of communication?
