Cute beautiful fish

Fish are aquatic vertebrates that breathe through gills and have fins for swimming. They inhabit a wide range of environments, from freshwater rivers and lakes to the salty oceans. Fish are incredibly diverse, with over 30,000 known species, varying greatly in size, shape, and color. They play crucial roles in ecosystems as both predators and prey, and many species are important for human consumption, recreation, and aquariums.