original: many have distinct dietary preferences and regularly occur in close association with their food species .
simplifications: many have different dietary preferences and regularly happen in close relation with their food species . many have dietary preferences that are typically associated with their food species . many have different dietary choices and regularly happen in close union with their food species . many species have different food preferences and often encounter others with similar preferences . many have distinct dietary preferences and regularly occur in close association with their food species . many have distinct dietary preferences and occur in close association with their food species . many have clear or separate dietary preferences and regularly happen in close association with their food species . many have definite dietary preferences and regularly occur in close association with their food species .