Chilean Dolphin

Fascinating facts about the Chilean Dolphin

• Only 1.7 m long, the Chilean dolphin weighs up to 60 kg, with females a touch larger than males, and its girth can span two-thirds of its length, giving it a stout, torpedo-like shape. This compact build, combined with a short beak, round dorsal fin and rounded flippers, often leads observers to mistake it for a porpoise. Its small dorsal fin and flippers are proportionally tiny compared with other dolphins, reinforcing its chunky silhouette.
• Pods of Chilean dolphins usually number just two to ten individuals, but sightings of groups as large as 50 have been recorded, including a spectacular 24-kilometre-long (15 mi) formation in the northern part of their range. These massive aggregations herd fish in circular or zig-zag patterns.
• Between 1,300 and 1,500 Chilean dolphins are harpooned each year in the Strait of Magellan, where they have long been used as bait for long-line swordfish and crab fisheries. Although baiting was common until the 1990s and hunting is now illegal, the annual kill rate still represents a significant pressure on a population estimated at fewer than 5,000 individuals. This intense exploitation, combined with habitat loss from salmon farms and river damming, pushes the species toward rapid decline, underscoring the urgency of stricter enforcement and protected-area measures.
• Chilean dolphins prefer water shallower than 20 m and stay within 500 m of shore, often hugging river mouths and tidal channels where currents are strong. They have even been spotted up to 5 km upstream in freshwater rivers. This reliance on narrow coastal habitats makes them extremely vulnerable to shoreline development, hydroelectric dams and water-transfer projects that alter river flow, threatening the very corridors they use for feeding and navigation.
• When a pod member falls ill or is injured, healthy Chilean dolphins exhibit epimeletic behavior. Documented cases include a sub-adult female shot through the heart that was accompanied by several companions, while a similarly wounded adult male was quickly abandoned.

Sources

Every fact above was checked against these pages, and kept only where one of them states it.

• Wikipedia
• Animal Diversity Web

At a glance

About the Chilean Dolphin

In the turbulent waters of the southeastern Pacific, the Chilean Dolphin navigates its domain with effortless agility, its sleek, gray form slicing through the waves with a fluidity that belies its robust build. As it moves, its dorsal fin rises and falls in a slow, deliberate rhythm, a hallmark of its cautious yet curious nature, ever-vigilant for the abundant fish and squid that sustain it in this rich, oceanic realm. With a population that remains remarkably resilient in the face of human pressures, the Chilean Dolphin continues to thrive, its very existence a testament to the enduring vitality of this captivating, coastal ecosystem.

More ocean life to discover

Browse Feravox