Experimental Apparatus (IMAGE)

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Experimental Apparatus

Caption

(A) Tool laterality probing apparatus and tool. Note the perpendicular placement of the tool to prevent approach bias. (B) Eye-dominance apparatus. (C) Right-sided tool use by Mango, viewed from above. (D) A right-eye ''look,'' with eye placed directly to the hole, by Liane, viewed from above.

Credit

Current Biology, Martinho III et al.

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