The Maui dolphin, also known as the {Hector's dolphin}, is a small marine mammal native to the waters off the west coast of {New Zealand}. It is one of the world's rarest dolphins, characterized by its rounded dorsal fin and a unique, stocky body. Adult Maui dolphins typically grow to about 1.2 to 1.5 meters in length and have a distinctive grayish color with lighter patches. These dolphins primarily inhabit shallow coastal waters and are known for their playful behavior. Unfortunately, the Maui dolphin population is critically endangered, with estimates suggesting fewer than 30 individuals remain. Conservation efforts are underway to protect their habitat and reduce threats from fishing and pollution.