European colonial efforts were most successful where the plants and animals they brought with them were most successful. This statement makes it appear that European domestic plants and animals either made it or did not. In fact, European animals went through a period of adaptation to their new situations. These in turn influenced the adjustments humans were making to the colonial experience. Examples of the range of animal and European adaptations are taken from 16th-century Spanish colonial efforts on Hispaniola, Cubagua, and Spanish Florida. These examples show that European animals were present in every case, but the suite of animals used and their role in the human diet varied considerably.