Marmosets (Saguinus fuscicollis): Are Learning Sets Learned?

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Science  20 Aug 1982:
Vol. 217, Issue 4561, pp. 750-752
DOI: 10.1126/science.217.4561.750


Confronted with a novel object, a social group of marmoset monkeys investigated it. If they found food on it they returned to it readily the next day; whoever had led in eating usually did so again. If they did not find food, day 2 responsiveness decreased. These untrained performances were sufficient for one-trial visual discrimination learning.