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Fig. 3. Results of Type 2 transfer tests examining the ability of bees, having
encountered a sample stimulus from Group 1, to choose a test stimulus of the
same category in (A) Group 2, (B) Group 3 and (C) a novel Group 4. In each
case, the bees are able to learn to choose the test stimulus that belonged to
the same category as the sample. Details as in
Fig. 2.