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Figure 2 | EvoDevo

Figure 2

From: Differences in chemosensory response between eyed and eyeless Astyanax mexicanus of the Rio Subterráneo cave

Figure 2

Behavioral responses to food extract in Subterráneo fish. (A) Both cavefish (CF)-like troglomorphic and surface fish (SF)-like nontroglomorphic fish were used for the behavioral test. On the bottom right, a SF from the Nacimiento del Río Choy is shown for comparison. (B) Schematic of experimental setup. See Methods for details. (C) Percentage of SF-like and CF-like fish that were in the food extract–infused quadrant of the pool after solution administration (10-s intervals). (D) Average time (in seconds) spent by SF-like and CF-like fish in either extract-infused or control area (**P < 0.01; CF-like = 5, SF-like = 4). Error bars represent standard deviations; indicated numbers correspond to average values.

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