Preponderance in circling a vibrating stimuli using the left side or right side in different cave pools and times. As a population and throughout time, Sabinos and Tinaja cavefish used significantly more their left side. When all years and pools are included, Pachón showed a border line P = 0.0605 (in green) for not significantly differing from a 1:1 ratio. N’s in upper row are for all four years. But when the enhanced data collecting method was used in 2022, fish from two Pachón pools significantly used their right side more. Videos from 2017–2020 are from Espinasa et al. (2021). For the recordings of 2022, methodology was improved such that it guaranteed that data was from independent fish within the population, allowing for statistical analyses for that single pool and date.