How is a dolphin adapted to life in the ocean?

Dolphins are highly adapted to life in the ocean through their streamlined bodies, which reduce drag and allow for efficient swimming. Their blowholes enable them to breathe easily at the surface, while their echolocation capabilities help them navigate and hunt in dark or murky waters. Additionally, their thick layer of blubber provides insulation in varying water temperatures, and their social behaviors enhance their survival through cooperative hunting and communication.