 Suggestions have been made that the correlations between species biodiversity and particular environments may not necessarily be due to ecomorphology, but rather a conscious decision made by species to relocate to an ecosystem to which their morphologies are better suited.However, there are currently no studies that provide concrete evidence to support this theory.Studies have been conducted to predict fish habitat preference based on body morphology, but no definitive distinction could be made between correlation and causation of fish habitat preference.