dorsal dorsalof or pertaining to the upper surface. Related Articles: Glossary: dorsal finHow do marine invertebrates produce sounds?Feature Sound: Bottlenose DolphinGray WhaleHumpback WhalePassive Acoustic Recording TagsDall’s PorpoiseRoss SealBrown meagreAustralian Humpback Dolphin Chris Knowlton2017-02-26T20:10:08-05:00