What general description of animal is a dolpin?

Dolphin is a term used to describe certain kinds of aquatic mammals belonging to the order Cetacea. Dolphins are generally characterized by their streamlined bodies, social intelligence, and the ability to use echolocation to navigate and find prey. They are typically smaller than whales and often live in pods, ranging from just a few individuals to hundreds. Dolphins can be found in various marine habitats, including oceans, bays, estuaries, and rivers, and are widely distributed across the globe. They play important roles in marine ecosystems and have cultural and symbolic significance in many human societies.