Long-finned Pilot Whale

Overview

The long-finned pilot whale is a large, highly social species of oceanic dolphin known for its distinctively rounded head and long pectoral fins. Often referred to as a "pothead whale," it is a toothed cetacean that maintains complex matrilineal group structures and is frequently observed in both offshore and occasionally inshore waters.

Appearance

This species is characterized by a robust body, a low and broad-based dorsal fin, and a prominent median notch in its tail flukes. Its most notable feature is the exceptionally long, slender pectoral flippers, which help distinguish it from its relative, the short-finned pilot whale. The body is typically dark, often black, with a smooth, crease-less throat area and sharply pointed teeth.

Distribution & habitat

Long-finned pilot whales exhibit a disjunct, antitropical distribution, inhabiting temperate and subpolar waters in both the Northern and Southern Hemispheres while avoiding equatorial regions. In the North Atlantic, they are found from the Barents and North Seas down to the Mediterranean and the northeastern United States. Southern populations are primarily distributed across the Atlantic, Indian, and South Pacific Oceans, particularly near Australia and New Zealand.

Biology & behavior

These whales are highly social animals that live in stable, matrilineal groups. They are known for their deep-diving capabilities, often synchronizing their foraging and diving behavior with other members of their pod. Communication is maintained through a variety of vocalizations, including clicks, pulsed calls, and whistles. They are also known for occasional mass strandings, which have provided significant opportunities for scientific research into their life history and social dynamics.