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The differences between whales, dolphins and porpoises.

People use the term dolphin, porpoise and whale to describe marine mammals belonging to the order Cetacean (from the Greek work ketos, “large sea creature”), and often use them incorrectly. Cetaceans are divided into two groups; baleen whales (Mysticeti) and toothed whales (Odontoceti). The main differences between these two groups are that the baleen whales READ MORE