"Calculated reciprocity" in non-human primates


	"Calculated reciprocity" in non-human primates

balthazarus

12-25-2008 4:03 AM

262 views

tags:

money, ape, society

balthazarus says:

I am not sure if it is a sign of how developed they are, or how much the human hasn't developed since he came to be...

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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://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/95ea6017-f140-450e-999d-d4e1293af226/18173270-E209-4906-84B2-535763775E49/" 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.telegraph.co.uk/scienceandtechnology/science/sciencenews/3933343/Orangutans-learn-to-trade-favours---at-a-price.html" href="http://www.telegraph.co.uk/scienceandtechnology/science/sciencenews/3933343/Orangutans-learn-to-trade-favours---at-a-price.html" style="font-size: 11px;">www.telegraph.co.uk</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.telegraph.co.uk/scienceandtechnology/science/sciencenews/3933343/Orangutans-learn-to-trade-favours---at-a-price.html"><H1>Orangutans learn to trade favours - at a price </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://www.telegraph.co.uk/scienceandtechnology/science/sciencenews/3933343/Orangutans-learn-to-trade-favours---at-a-price.html"><div align="center"><img src="http://content8.clipmarks.com/blog_cache/www.telegraph.co.uk/img/91643DF1-1FC7-470A-9ACC-2569FED012BC" alt="Orangutans can use their own 'currency' which they use to buy favours such as winning bananas, scientists have discovered. " /></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.telegraph.co.uk/scienceandtechnology/science/sciencenews/3933343/Orangutans-learn-to-trade-favours---at-a-price.html"><P>
The apes can help each other get food by trading tokens, learning the value of 
  each token and handing it over only in exchange for favours or food at the 
  right value.
</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.telegraph.co.uk/scienceandtechnology/science/sciencenews/3933343/Orangutans-learn-to-trade-favours---at-a-price.html">orangutans could learn the 
  value of tokens and trade them, helping each other win bananas.
</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.telegraph.co.uk/scienceandtechnology/science/sciencenews/3933343/Orangutans-learn-to-trade-favours---at-a-price.html">The discovery is the first evidence of "calculated reciprocity" in 
  non-human primates</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.telegraph.co.uk/scienceandtechnology/science/sciencenews/3933343/Orangutans-learn-to-trade-favours---at-a-price.html"><P>
Initially, they were given several sets of tokens. One type of token could be 
  exchanged by an orangutan for bananas for itself, another type could be used 
  to gain bananas for a partner, and a third had no value. 
</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.telegraph.co.uk/scienceandtechnology/science/sciencenews/3933343/Orangutans-learn-to-trade-favours---at-a-price.html"><P>
Dok, the female, was especially good at swapping tokens to get bananas for 
  Bim, the male. Sometimes Bim would point at the tokens to encourage her, but 
  he was less interested in trading tokens that would win bananas for her. As 
  she became less willing to help him out, Bim responded by trading more until 
  their efforts were more or less equal. 
</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.telegraph.co.uk/scienceandtechnology/science/sciencenews/3933343/Orangutans-learn-to-trade-favours---at-a-price.html">gorillas and chimpanzees were much less willing</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/18173270-E209-4906-84B2-535763775E49/blog/" title="blog or email this clip"><img src="http://content7.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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