Fish

Fish are aquatic vertebrate animals belonging to the class Pisces. They typically have streamlined bodies, gills for respiration, and fins for locomotion. Fish are found in oceans, rivers, lakes, and streams worldwide, exhibiting immense diversity in form and species. Their diets are highly varied, including herbivorous, carnivorous, omnivorous, or filter-feeding strategies. Fish play a crucial role in aquatic ecosystems, serving as a food source for many animals and forming complex food webs.