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Figure Caption
Fig. 1 Overview of the exploration tank with ramp (40 cm x 10 cm x 20 cm; 23° of inclination), showing the flat area (black), the ramp area, and the object area. The whole bottom of the tank was completely covered with opaque self-adhesive plastic films (white or black). At the top of the ramp, there was a green cubic object (3 cm2)
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Full text @ Dev. Growth Diff.