What is the characteristic shape of the dorsal fin that helps distinguish the harbour porpoise from dolphins?
Answer
Small and triangular
The harbour porpoise possesses a small, triangular dorsal fin that is broad-based and set just past the midpoint of its back, contrasting sharply with the tall, curved fins seen on many dolphins.
Related Questions
What habitat preference contributes to the harbour porpoise earning its common name?What is the characteristic shape of the dorsal fin that helps distinguish the harbour porpoise from dolphins?Which anatomical feature is a key identifier of a harbour porpoise head, setting it apart from many dolphin species?What is the primary mechanism of camouflage exhibited by the harbour porpoise's coloration pattern?When surfacing to breathe calmly, what is the typical motion observed for a harbour porpoise?What characteristic leads to sexual dimorphism in adult harbour porpoises?Which description best fits the overall body structure of the harbour porpoise?Which specific feature, visible when surfacing in calm water, might confirm an observer is watching a dolphin instead of a harbour porpoise?What is the approximate size range for the total length of mature adult harbour porpoises?What dietary requirement necessitates the porpoise's high metabolic rate?