<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div><span>Here's a wayback machine link to the cited 2003 academic paper:<br></span></div><a href="http://web.archive.org/web/20110716105835/http://www.psych.umn.edu/courses/fall06/macdonalda/psy4960/Readings/PankseppRatLaugh_P&amp;B03.pdf"><span>http://web.archive.org/web/20110716105835/http://www.psych.umn.edu/courses/fall06/macdonalda/psy4960/Readings/PankseppRatLaugh_P&amp;B03.pdf</span></a><div><br></div><div><br><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; margin-top: 5px; padding-left: 5px;">  <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div dir="ltr"> <font size="2" face="Arial"> <hr size="1">  <b><span style="font-weight:bold;">From:</span></b> Jake
 &lt;jake@spaz.org&gt;<br> <b><span style="font-weight: bold;">To:</span></b> "noisebridge-discuss@lists.noisebridge.net" &lt;noisebridge-discuss@lists.noisebridge.net&gt; <br> <b><span style="font-weight: bold;">Sent:</span></b> Saturday, June 30, 2012 5:45 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> [Noisebridge-discuss] rats laugh when tickled<br> </font> </div> <br>
who knew?&nbsp; I guess now we need to make an audio transverter, so we can <br>hear the noisebridge mice laughing at us.&nbsp; apparently these rats laugh in <br>the 50khz range, so probably noisemice laugh at a higher frequency than <br>that because they're so tiny.<br><br>http://www.huffingtonpost.com/2012/06/26/rats-study-animals-laugh-tickled-video_n_1627632.html<br><br><a href="http://tierneylab.blogs.nytimes.com/2007/03/18/what-happens-when-you-tickle-a-rat-see-for-yourself/" target="_blank">http://tierneylab.blogs.nytimes.com/2007/03/18/what-happens-when-you-tickle-a-rat-see-for-yourself/</a><br>_______________________________________________<br>Noisebridge-discuss mailing list<br><a ymailto="mailto:Noisebridge-discuss@lists.noisebridge.net" href="mailto:Noisebridge-discuss@lists.noisebridge.net">Noisebridge-discuss@lists.noisebridge.net</a><br><a href="https://www.noisebridge.net/mailman/listinfo/noisebridge-discuss"
 target="_blank">https://www.noisebridge.net/mailman/listinfo/noisebridge-discuss</a><br><br><br> </div> </div> </blockquote></div>   </div></body></html>