Where do dolphins exist?

Dolphins are found in oceans and seas around the world, primarily in warm and temperate waters. They inhabit a variety of marine environments, including coastal areas, open ocean, and even some river systems, such as the Amazon River. Different species of dolphins have specific ranges; for example, the bottlenose dolphin is common in both shallow waters and deeper oceanic regions. Additionally, some species, like the river dolphins, are adapted to freshwater habitats.