Head to head
Burmeister's Porpoise vs Commerson's Dolphin
Burmeister's Porpoise
VS Commerson's Dolphin
Both small cetaceans share cold South American coastal waters, but one keeps a low profile while the other is a familiar, popular sight.
| Burmeister's Porpoise | Commerson's Dolphin | |
|---|---|---|
| Scientific name | Phocoena spinipinnis | Cephalorhynchus commersonii |
| Visibility | Shy, rarely seen at the surface | Frequently observed, popular for wildlife watching |
| Colouring | Dark and understated | A bold black-and-white pattern, nicknamed skunk dolphin |
| Dorsal fin | A distinctive backward-leaning fin | A small, rounded dorsal fin |
| Conservation status | Data Deficient | Least Concern |
| Population trend | Unknown | Stable |
| Main threat | Gillnet entanglement | Not significantly threatened |
| Habitat | Coastal | Coastal, ocean |
Burmeister's Porpoise vs Commerson's Dolphin: common questions
Which one is more frequently observed by people?
Commerson's dolphin is seen far more often, known for energetic surface acrobatics, unlike Burmeister's porpoise, which is notably shy and rarely visible at the surface.
Which one has a distinctive backward-leaning dorsal fin?
Burmeister's porpoise has this feature, a fin shaped unusually and positioned far back along its body, unlike Commerson's dolphin's small, rounded dorsal fin.
Which one has greater uncertainty about its population?
Burmeister's porpoise faces greater uncertainty, classified as Data Deficient, while Commerson's dolphin has a well-documented, stable population classified as Least Concern.