The phrase "were transformed into" can be replaced with a variety of different synonyms depending on the context of the sentence. Some possible options include "were converted to," "underwent a metamorphosis to become," "evolved into," "shifted to," "morphed into," "turned into," "changed into," "adapted to," and "modified to suit." Each of these synonyms conveys a slightly different shade of meaning, so it is important to choose the most appropriate one based on the specific situation. Using alternative vocabulary can help to add variety and interest to written or spoken communications.