There are only two species of bottlenose dolphins, the Common Bottlenose Dolphin and the Indo-Pacific Bottlenose Dolphin.
The Yangtze river dolphin, also known as Baiji is a freshwater dolphin who used to be found in the Yangtze river in China.
Bottlenose dolphins can be found scattered around every ocean in the world
Oceanic dolphins are aquatic mammals, members of the Delphinidae family of cetaceans.
There are 15 species of herring but the most common is the Atlantic Herring.
The bottlenose dolphin scientific name is Tursiops truncatus and the only other species closely related to the bottlenose dolphin is the Tursiops aduncus.