Under unusual dog breeds, we have classified these breeds into groups which show a singularity, for example, either a physical abnormality or a typical behavioural attribute, that are not usually seen in other dogs. We have also included some dog breeds with an intriguing or unusual history. Some of these dogs tend to be rare, but not all of them.

Basenji
The Basenji descends from dogs that came from Zaire in the 1930s.
The abnormality of this dog is the singular yodel it produces-a bit like a Swiss Alpine yodeller. Similar to the wolf, the Basenji has only one breeding cycle a year.