The Hourglass dolphin is also known as the Wilson's Dolphin, named after the Antarctic explorer, and the Southern White-Sided Dolphin. As with other species, the hourglass dolphin was given it's various names for its appearance and location.
With a primarily black body and fins, the Hourglass dolphin has white markings down either side of its short, sleek body, which resemble that of an hourglass. These markings will differ from dolphin to dolphin, but will remain within the pattern of a rough hourglass shape. The underside of the Hourglass dolphin is a brilliant white color, and dark patches of gray or black with encircle the eyes.
Hourglass dolphins can reach lengths from 1.5 to 2.0 meters in length, and weigh 120 to 180 pounds or more. This species of dolphin is very easily recognized, and due to its unique markings, does not tend to be confused with any other species.
Hourglass dolphins live in pods, as most species of dolphins do, which ranges in numbers of 2 to 10. On occasion, the pods have been known to have as many as 45 dolphins. The Hourglass dolphin is known for socializing with other species such as Southern Bottlenose Whales and Fin Whales. It is very common to see the Hourglass dolphin bowriding and "showing off" for humans. When breaching the water surface, the Hourglass dolphin is known for it's dramatic spray, which is visible from a ship or boat at sea.
Due to its habitat in the cold arctic waters, the population, length of life, and influence of man is not fully known. Researchers are not even sure exactly what type of prey the hourglass dolphin prefers, although it is thought that they primarily eat smaller fish.
Just as with all species, the Hourglass is unique in it's own right. It's speed, grace and beautiful appearance are just a reminder that man has more to learn everyday.
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