(1) Welcome to Dolphin Ocean Park. We’re really happy that you are here to learn about the amazing animals we call dolphins. Dolphins are highly intelligent marine mammals and are part of the toothed whale family. (2) They are found worldwide, some in freshwater rivers, but most species live in shallow areas of oceans worldwide. They are carnivores, eating mostly fish and squid. They use echolocation, bouncing sound off underwater objects, to hunt together. Dolphin coloration varies, but they are generally gray in color with darker backs than the rest of their bodies.
It can be understood from the passage that dolphins.......