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Social diffusion of new foraging techniques in the Southern ground-hornbill (Bucorvus leadbeateri)
Social learning during foraging has been found in a wide range of animals, including numerous bird species. Still, the mechanisms underlying this...
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A chimpanzee’s (Pan troglodytes) long-term retention of lexigrams
In this experiment, a chimpanzee’s ( Pan troglodytes ) long-term retention was examined. The chimpanzee, Lana, was trained to use lexigrams (geometric...
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Proactive interference, recency, and associative strength: Comparisons of black-capped chickadees and dark-eyed juncos
Black-capped chickadees ( Parus atricapillus ) and dark-eyed juncos ( Junco hyemalis ) were required to match to the last item from a series of up to...
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Differences in feeding ecology predict differences in performance between golden lion tamarins (Leontopithecus rosalia) and Wied’s marmosets (Callithrix kuhli) on spatial and visual memory tasks
Golden lion tamarins ( Leontopithecus rosalia ) and Wied’s marmosets ( Callithrix kuhli ) exhibited adaptive differences in performance on several...
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One-trial associative memory: comparison of food-storing and nonstoring species of birds
Experiment 1 compared food-storing marsh tits and nonstoring blue tits, and Experiment 2 compared food-storing jays and nonstoring jackdaws, in a...
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Memory for spatial and local cues: A comparison of a storing and a nonstoring species
Two passerine species, black-capped chickadees ( Parus atricapillus , a food-storing bird) and darkeyed juncos ( Junco hyemalis , a nonstoring bird) were...
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Observation of behavior, inference of function, and the study of learning
Before the present century, the primary means of studying animals was observation of the form and effects of their behavior combined with presumption...
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Comparing spatial memory in two species of tit: Recalling a single positive location
The performance of a food-storing species, the marsh tit (Parus palustris) , was compared with that of a nonstorer, the blue tit (P. caeruleus) , in a...
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Natural sources of internal category structure: Typicality, familiarity, and similarity of birds
Typicality ratings of 53 types of birds by University of California, Berkeley undergraduates (Rosch, 1975b) were more strongly correlated with the...