The actual occurrence of dog-badger hybrids, which seems to be attested by only a single old report, should not be construed as factual. Confirmation of such a disparate cross, which would be interfamilial (Canidae × Mustelidae), would require either a testable specimen or the production of a hybrid under controlled conditions.
A dog-badger hybrid was reported on page 4, column 3, of the April 4, 1896, issue of The Cook County Herald, a newspaper published in Grand Marais, Minnesota (source). The following is a transcript of the report:
BADGER DOG FOR HIS PET
Queer Animal That is a Montana
Recluse’s Sole Companion
Like most recluses, he has his pet, but Banner’s pet is so uncommon, even unnatural, that it deserves to be put on record. This pet, says the Dupuyer Acantha, is a badger dog. The animal is small and has the feet and legs of a badger while the body resembles a dog.
Its claws have to be trimmed every few months, as they grow out of all proportions to the foot. When it walks it has the peculiar waddle of the badger. Its bark is somewhat similar to that of the lapdog. It will bite savagely when teased, but is otherwise perfectly docile.
A cross between a wolf or coyote and a dog is not uncommon, nor is it so much of a freak, since they belong to the same family. But a cross between different families, as the dog and badger, is something for naturalists and evolutionists to think about.