Some of the species of dolphins that are found in the North Atlantic Ocean are humpback whale, Harbor seal, Minke Whale, Finback whale, Sei Whale, Right Whale and Atlantic White-Sided Dolphin. The different species range from 5 to 8 feet up to 45 to 50 feet long. Weight of the different species range from 300 to 600 pounds up to 40 to 50 tons.
The diet of most dolphins consists of different types of fish and squid. Also included in some diets is plankton. Dolphins consume from 15 -30 pounds of food daily and some species eat up to 100 pounds a day.
The gestation period for most dolphin species are 12 to 14 months. The life span varies but some species have been known to live as long as 65 to 100 years.
Many dolphin species travel in their own groups. Some species can be found in groups of one to four and some species can be found in groups as large as fifty dolphins. For many species, it has been difficult to get an accurate count of how many there are of each type. Some species are becoming endangered and others there are an abundant amount in different areas.