This is a small and slender dolphin, and the size of them will vary based on where they reside. The common coloration for them is dark gay on the back and then lighter gray on the sides. They are white or light gray on the belly. They may have a very dark gray stripe that runes from the eye to the flipper. They have a beak that is long and thin with a dorsal fin that is triangular shaped.
The average size for a Spinner Dolphin is from 6 to 7 feet in length. They can weigh from 130 to 170 pounds. The males are longer and heavier than the females. The males also have a more distinctive postanal hump than the females. The have a small head. A dwarf subspecies of the Spinner Dolphin has been identified around the Southeastern portion of Asia.
Distribution
The open areas of the tropical seas are where most of them are found. They tend to live further from land than most other species of dolphins. They are known to live in various oceans around the world including the Pacific, Atlantic, and Indian. They may be found in shallow waters to look for food from time to time. In Hawaii, they have been seen closer to the coast than in any other regions. They will rest in the bay areas for protection during the day.
(source:google/http://www.dolphins-world.com/)
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