cetacean cetaceanorder of mammals that includes whales, dolphins and porpoises Related Articles: Glossary: delphinidGlossary: dialectGlossary: MysticetesGlossary: passive acoustic monitoring (PAM)Biological OceanographerMass Stranding – June 4, 2017Monitoring Wind Farm Construction – June 25, 2017FranciscanaHow “Fight or Flight” May Affect Marine Mammal Vocalizations – April 4, 2025West Indian Manatee Chris Knowlton2018-01-22T22:01:23-05:00