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Birds stand guard in the Kalahari
CrazyRedHead
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4-18-2008 7:14 AM
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animals
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science
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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/5847b092-bb0f-4d3f-9f94-9a4c321d5a1f/D1285B64-10F6-48A9-B078-966A208570CC/" 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://www.timesonline.co.uk/tol/news/uk/science/article3767964.ece" href="http://www.timesonline.co.uk/tol/news/uk/science/article3767964.ece" style="font-size: 11px;">www.timesonline.co.uk</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.timesonline.co.uk/tol/news/uk/science/article3767964.ece"><div align="center"><img src="http://content7.clipmarks.com/blog_cache/www.timesonline.co.uk/img/50873107-C399-4C86-8355-9D7E53102D85" alt="Pied Babbler" /></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://www.timesonline.co.uk/tol/news/uk/science/article3767964.ece"> Birds “stand sentry” to help other members of their group forage for food, and sing a special song to give warning of danger,</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://www.timesonline.co.uk/tol/news/uk/science/article3767964.ece"> The research into pied babblers, a social species from the Kalahari desert of southern Africa that lives in groups of about seven, has revealed a rare example of apparently altruistic behaviour, in which individuals put themselves at a temporary disadvantage for the benefit of others.</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://www.timesonline.co.uk/tol/news/uk/science/article3767964.ece"><P> While the pied babbler community forages for food, such as small snakes and scorpions dug up from the desert, one of them stands guard in a tree. </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://www.timesonline.co.uk/tol/news/uk/science/article3767964.ece"> This sentinel goes hungry as it watches for predators, allowing its group members to concentrate on feeding. To let other babblers know that it is on guard, the sentry sings a “watchman’s song”, and makes alarm calls if a predator is spotted.</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://www.timesonline.co.uk/tol/news/uk/science/article3767964.ece"> While the watchman is singing, foraging individuals spread out and spend more time searching for food than looking out for danger.</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;"> </td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/D1285B64-10F6-48A9-B078-966A208570CC/blog/" title="blog or email this clip"><img src="http://content8.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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