File:PSM V55 D502 Graph scale of animal learning curve 2.png

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PSM_V55_D502_Graph_scale_of_animal_learning_curve_2.png(700 × 510 pixels, file size: 12 KB, MIME type: image/png)


English: Graph scale of animal learning curve 2
Source Popular Science Monthly Volume 55
Author Unknown
Unknown author


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current22:44, 1 June 2011Thumbnail for version as of 22:44, 1 June 2011700 × 510 (12 KB)Ineuw (talk | contribs)
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