Porpoises have a rounded head and shorter beak than dolphins, a distinction significant in animal studies. You can identify a porpoise by its blunt snout.
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Ocean Mammals
Porpoises are marine mammals; they need to surface for air and are warm-blooded. The porpoise breached the surface to breathe.
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Not Dolphins
Though similar to dolphins, porpoises are not as commonly trained for entertainment in marine parks. Unlike dolphins, you won’t often see a porpoise doing tricks.