The Largest Dolphin

Technically, all dolphins and porpoises are whales. They all belong to the suborder Cetacea, which has approximately 86 living species, split into two parvorders:

Odontoceti or toothed whales porpoises, dolphins, other predatory whales including the beluga and sperm whale, and the poorly understood beaked whales
Mysticeti or baleen whales filter feeders, including the blue whale, humpback whale and bowhead whale

© Haydn Thompson 2021