There are many synonyms for the term 'animals collectively.' One of the most common is 'fauna,' which refers to all of the animals living in a particular area or ecosystem. 'Wildlife' is another term, usually used to describe animals that are not domesticated. 'Zoological collection' refers to all of the animals in a zoo or aquarium, while 'menagerie' refers to a collection of animals that is kept as a personal or private hobby. 'Creature community' can also be used to describe all of the animals that live in a particular environment. Finally, 'taxonomy' is a term that refers to the process of classifying and organizing animals collectively into groups based on their characteristics.