Detailed profile of this breed: origin, year of creation, recognised varieties and official approvals.
Breed summary
I could not find any reliable, documented rabbit breed officially named "Dwarf Fox" or "Nain Renard" in major breed standards (ARBA, BRC, French or Belgian standards). Qualitatively: there is no verified breed standard, description, or recognised breeder population under that exact name. Quantitatively: no official measurements (weight, height, ear length, body type) are available for a breed of this name.
Detailed origin
There is no documented origin, development history, or geographic registration for a breed called "Dwarf Fox"/"Nain Renard." Qualitatively: without a recognized standard, origin cannot be traced to a breeder, country, or crossbreeding program. Quantitatively: there are no recorded dates, founding breeders, or registry entries to cite.
Detailed description
Because the name is not found in standard references, a specific physical or temperamental description cannot be provided. Qualitatively: any description would be speculative. Quantitatively: no validated data on typical adult weight, body proportions, ear length, coat type, or accepted colours exists for this name. If you meant a different breed (examples: Netherland Dwarf, Polish, Dwarf Hotot, Mini Rex, Holland Lop), or if "Nain Renard" is a local/colour variety rather than a recognised breed, tell me which one or provide a photo/region so I can give accurate breed-specific information.