Mammals
Heaviside's Dolphin
Cephalorhynchus heavisidii · also called Heavisides dolphin
Hunting in the cold, nutrient-rich coastal waters off southwestern Africa, Heaviside’s dolphin remains within one of the narrowest ranges of any dolphin species in the world, one of the smallest members of its family found nowhere else on the planet.
Overview
Heaviside’s dolphin, Cephalorhynchus heavisidii, is one of the smallest dolphin species in the world, native to coastal ocean waters across a narrow range spanning parts of Namibia and South Africa. Its compact size, adaptation to cold upwelling waters, and naturally restricted geographic range make it one of the more distinctive and conservation-relevant small dolphins found along the African coastline.
A small dolphin confined to a small stretch of coast
Rarely found anywhere beyond a narrow band of southwestern African coastline, Heaviside’s dolphin has built its entire existence around one specific stretch of cold, productive water, a geographic restriction that makes its conservation status closely tied to the health of that single region.
Status
Near Threatened and decreasing, present across a narrow range of coastal habitat spanning parts of Namibia and South Africa.
Heaviside's Dolphin: common questions
Why is Heaviside's dolphin named the way it is?
This species is named after the individual who collected the original specimen used to formally describe it, a naming convention reflecting the historical practice of honouring collectors or naturalists involved in a species' initial scientific documentation rather than describing a physical trait.
How small is Heaviside's dolphin?
This species is one of the smallest dolphin species found anywhere in the world, noticeably more compact than many other coastal and oceanic dolphins, making size alone a useful clue for identification within its narrow southwestern African range.
Why does Heaviside's dolphin live in such cold water?
This species is adapted to the cold, nutrient-rich waters produced by coastal upwelling along its range, conditions that support the abundant small fish and squid populations this species depends on despite the relatively low water temperatures involved.
How large is Heaviside's dolphin's range?
This species occupies a comparatively narrow, restricted stretch of coastline spanning parts of Namibia and South Africa, a considerably smaller range than many other marine dolphin species found more broadly across the world's oceans.