Abstract:Characteristics of visual functions differ between species as they have evolved independently to adapt to their habitat. Animals use shape and brightness to visually discriminate between objects. In this study, we used five harbor seals (Phoca vitulina) to determine how amphibious animals use these two features of visual function. The subjects were trained in a two-alternative forced-choice task to discriminate between a dark gray circle (correct object) and a light gray triangle. In the test phase, we prepare… Show more
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