Fish that can talk


	Fish that can talk

dustingransden

7-21-2008 1:57 AM

105 views

dustingransden says:

two fish, the toadfish and midshipman fish, have been found to actually be able to vocalize

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/4ef8e7fe-a1fd-4855-be23-1423d1c91422/10FC2423-B523-43A7-B893-9249DDA2F4A8/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://news.nationalgeographic.com/news/2008/07/080717-fish-evolution.html" href="http://news.nationalgeographic.com/news/2008/07/080717-fish-evolution.html" style="font-size: 11px;">news.nationalgeographic.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.nationalgeographic.com/news/2008/07/080717-fish-evolution.html"><H1 class="newsTitle">Humming Fish Reveal Ancient Origin of Vocalization</H1></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.nationalgeographic.com/news/2008/07/080717-fish-evolution.html"><DIV class="inlinedate">Ker Than<BR />for <A href="http://news.nationalgeographic.com">National Geographic News</A><BR /></DIV></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.nationalgeographic.com/news/2008/07/080717-fish-evolution.html"><DIV class="inlinedate">July 17, 2008</DIV></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.nationalgeographic.com/news/2008/07/080717-fish-evolution.html"><P>
The finding is based on a study of toadfish and their close relatives midshipman fish, which both use their air-filled swim bladders to grunt, growl, and hum to attract mates and defend territories. (See <A href="http://news.nationalgeographic.com/news/2008/07/photogalleries/toadfish-midshipmanfish-photos/index.html">photos of toadfish and midshipman fish</A>.)
								</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.nationalgeographic.com/news/2008/07/080717-fish-evolution.html"><P>
A group of rhythmically firing nerve cells in the fishes' brains determines the contraction rate of muscles attached to their swim bladders and controls the pitch and duration of the calls.
</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.nationalgeographic.com/news/2008/07/080717-fish-evolution.html"><P>
Andrew Bass of Cornell University and colleagues mapped this neuronal network in larval toadfish and midshipman fish. The team found that the circuit for vocalizing develops across a specific <A href="http://science.nationalgeographic.com/science/health-and-human-body/human-body/brain-article.html">brain</A> region that includes the base of the hindbrain and the upper spinal cord. 
</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.nationalgeographic.com/news/2008/07/080717-fish-evolution.html"><P>
This is precisely the same pattern of brain development seen in other vocalizing vertebrates, including birds, amphibians, and primates such as humans.
</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.nationalgeographic.com/news/2008/07/080717-fish-evolution.html"><div align="center"><img src="http://content9.clipmarks.com/blog_cache/news.nationalgeographic.com/img/D3CFD583-41CA-4FDA-AE39-49F05B75B27B" alt="toadfish picture" /></div></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/10FC2423-B523-43A7-B893-9249DDA2F4A8/blog/" title="blog or email this clip"><img src="http://content6.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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