Aquatic creature is a term that refers to any animal that lives or spends the majority of their life in water. However, there are several synonyms for aquatic creature that can be used to describe these fascinating creatures. "Marine animal" is a term used for all sea creatures that live in saltwater bodies. "Aquatic fauna" is a term used for all animals that can be found in aquatic environments, including fish, amphibians, and invertebrates. "Water animals" is another term used to describe aquatic creatures, including mammals such as dolphins and seals. Other synonyms for aquatic creatures include "aquatic life," "water dwellers," and "oceanic creatures".