Badgers are animals only mentioned in the DreamWorks Dragons franchise.
Badgers have short, yet wide bodies with four short legs built for digging. They have long black and white faces with small ears and a powerful jaw. Their jaw strength is given by the mandibular condyles connected to long cavities in their skulls.
Vikings, most likely, came across the European Badger (Meles meles).
The badgers have no function in the franchise. However, in reality, badgers are hunted for their fur or meat and even kept as pets.
|“||We fought like badgers over the meaning of the clues.||”|
|— Gobber describing the treasure hunt|
|— Fishlegs and Tuffnut about badgers|
Then in "Cast Out, Part 1", Tuff refers to himself add being foxy like a badger after Snotlout says he had been unconscious like a fox.
|— Tuffnut suggesting badgers are foxy|