Head to head
Arnoux's Beaked Whale vs Southern Bottlenose Whale
Arnoux's Beaked Whale
VS Southern Bottlenose Whale
Both whales dive to extreme depths in Antarctic waters and remain among the least understood large whale species on Earth.
| Arnoux's Beaked Whale | Southern Bottlenose Whale | |
|---|---|---|
| Scientific name | Berardius arnuxii | Hyperoodon planifrons |
| Closest relative | Baird's beaked whale, in the North Pacific | The northern bottlenose whale, in the North Atlantic |
| Head shape | Not distinctively bulbous | A bulbous forehead and dolphin-like beak |
| Diving ability | An extremely deep diver | An extremely deep and long diver |
| Conservation status | Data Deficient | Least Concern |
| Population trend | Unknown | Unknown |
| Study status | One of the least studied whale species | Relatively poorly studied |
| Habitat | Ocean, polar | Ocean, polar |
Arnoux's Beaked Whale vs Southern Bottlenose Whale: common questions
Which one has a Northern Hemisphere counterpart?
Both do: Arnoux's beaked whale is the southern counterpart to Baird's beaked whale in the North Pacific, while the southern bottlenose whale is the counterpart to the northern bottlenose whale of the North Atlantic.
Which one has a distinctive bulbous forehead?
The southern bottlenose whale has this feature, a bulbous forehead and dolphin-like beak, a shape not specifically documented as distinctive for Arnoux's beaked whale.
Which one is less well understood by researchers?
Arnoux's beaked whale is considered the less understood of the two, classified as Data Deficient, while the southern bottlenose whale is classified as Least Concern despite also being relatively poorly studied.