Aha - that's how it works!
How "know how" spreads in this network, the scientists examined by special feeding experiments. The animals had to know a trick to get to the tidbits of a special food source: either open a flap or swing it to the side led to success. The researchers each contributed one of these two possible strategies to the respective leader of the two experimental groups. Alpha monkey number one knew so the top-closing, the other dominated the swinging technique. These two animals then returned to their groups. The whole community has now been confronted with the feeding facilities. Now the researchers were able to observe whether and how the respective technique spread from the alpha animal in the two monkey hordes.
Basically, it was shown that squirrel monkeys are actually capable of social learning: Starting from the alpha male number one spread in one group, the folding technique, the other male mediated the His, however, the swivel variant. It showed that monkeys, who were more intensively involved in the social network, were able to acquire the respective technology much faster than animals with weaker connections: those who were better connected had the opportunity to look at the technique more quickly. "Our results show that innovation does not spread randomly in primate groups, but the transmission is characterized by the social network in which the monkey is located - similar to humans, " summed up Whiten. displayAndrew Whiten (University of St Andrews) et al .: Current Biology, doi: 10.1016 / j.cub.2013.05.036 © science.de - Martin Vieweg