Chimpanzees hooting in the trees, Kibale, Uganda

<a href="http://www.clipfeeder.com">Clip Feeder / Free Videos Categorized</a><br /><object width="425" height="350"><param name="movie" value="http://www.youtube.com/v/26VGnjBD2_k"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/26VGnjBD2_k" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350"></embed></object>