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Perception

Measuring distance in two dimensions

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Figure 1: The weakly electric fish,Gnathonemus petersii.

G. VON DER EMDE

Figure 2: Electric image formation, exemplified by the formation of shadows on a screen.

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Metzner, W. Measuring distance in two dimensions. Nature 395, 838–839 (1998). https://doi.org/10.1038/27536

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