Spotted Dolphin.

The Atlantic spotted dolphin (Stenella frontalis) belongs to the Delphinidae family. They are usually  5-7 ft (1.6-2.1 m) long and weigh about 200-300 lbs (93-135 kg). Interestingly,their average lifespan has not been estimated, although it is general knowledge that they live more than 30 years. They have a robust body with a tall, “falcate” dorsal fin located midway down their back. The rounded “melon” is separated from the moderately long beak by a distinct crease. The coloration and patterns vary with age, life stage, and geographic location.

They are born without spots, they are dark gray on their backs graduating along their sides to a white belly. At approximately four years of age they begin to get spots. The older adults become so fused with spots their bellies appear almost black with white specks.

Atlantic spotted dolphins are usually found in groups of fewer than 35 individuals, but have been occasionally seen in larger groups of around 100 animals. Since they are mammals, they need to visit the surface often to replenish oxygen. They generally make dives of about 30 ft (10 m) or less for 2-6 minutes, but are capable of reaching depths of 130-200 ft (40-60 m) and have been recorded holding their breath for up to 15 minutes.

They lead very complex social lives. They exhibit numerous social behaviors like companionship, affection, aggression and playfulness. Regardless of the relationship when two dolphin are swimming together they will be in almost constant physical contact with each other.

They have an unique swimming style. It is often described as acrobatic due to their frequent “breaching”, jumping, and other aerial activities at the surface. They are capable of swimming at very fast speeds and often approach vessels to “bowride”.

Location

This species is found only in the Atlantic Ocean, from southern Brazil to the United States (New England) in the west, and to the coast of Africa in the east. They relish warm waters of the Caribbean and are a common sight here. Although they are widespread, their abundance has still not been estimated by official studies, though the general presumption is that their numbers are potentially large.