Sorry cant find a link to any info on the program other than a CV page for the composer and also couldn’t find any links to the research ( will mail the BBC to see if they will release any info)
But the program was very interesting. And yes while the experimental procedure would bee good to look at in regard to that particular experiment and others, studies in the wild also showed some interesting traits that shed a similar light on the monkeys in question.
Namely there is this nut or something similar that they eat, but it’s too tough for them to bite through, so they climb up on this big boulder and prop the nuts in little indents and whack them with large rounded stones. The boulder has obviously been in use for generations by the ware on it’s upper surface. But when you study the hammer rocks you find they are not local and, it seems, were gathered from a river some miles to the west and brought to this boulder for this communal nut cracking.
Not too bad so far we have tool use and tool creation. But the next thing is the really interesting bit interesting bit. As it happens the nut doesn’t grow locally either and can generally be found a mile or so east from the hammer platform. Also the nut is protected by a very fibrous husk that defeats any attempt on the monkey’s part to bludgeon it open. They however have found a solution.
They wander to the area where the nuts grow and climb the trees and pick an amount of nuts, but they don’t take the nuts they pick. These are left to rot down a bit so weaken the outer husk enough to get through it. The monkeys pick some fresh nuts then take an equivalent amount of rotted nuts in return and then heads off to the communal anvil to open his meal.
This level of cooperation and forward planning astounds me, normally you would expect a wild animal to be out for themselves, and just take the nuts that were ready either by wind fall or the harvesting of others, but they understand that to maintain a supply for them each time they go to gather nuts they must harvest some fresh ones for the communal larder.
As I said I will try and get more info on this program.
--edit-- found some info, see the following links , but nothing yet that stipulates the methodology, practice and result of the mentiones experiment --
BBC link; some basic info on the brown capuchinAnother link regarding Brown Capuchin reasers (this was also in the program)A link in regard to resiprocity in the brown capuchinExperiment to coperation in Brown Capuchinsok still not the experiment I mentioned but still interesting stuff
This message has been edited by ohnhai, 28 February 2005 12:52 AM