The term for creatures that live in or near water is "aquatic organisms." This category encompasses a variety of life forms, including fish, amphibians, crustaceans, mollusks, and aquatic plants. Aquatic organisms are adapted to live in various types of water environments, such as oceans, rivers, lakes, and wetlands. Their adaptations involve specialized anatomical features and behaviors that enable them to thrive in their respective habitats. Aquatic ecosystems are vital for maintaining biodiversity, supporting food chains, and regulating environmental processes, demonstrating the importance of these organisms in the broader ecological context.