The main dolphin species that swim in association with tuna are spotted, spinner and common dolphins.

These dolphin species are known by the common name "Blackfish".

However, the two dolphin species are not closely related.

In order to resolve this situation it has been proposed that the affected dolphin species be placed within the genus Sagmatias.

Bottlenose dolphins have been known to hybridize with other dolphin species.

They display aggression towards sharks and smaller dolphin species.

Various species sometimes engage in sexual behavior including copulation with other dolphin species.

It was the first dolphin species to be named for at least 30 years.

They sometimes associate with other dolphin species, such as pilot whales.

It is the third time since the late 19th century that a new dolphin species has been recognised.