Wait, mutant hounds are cats.
The Institute didn’t have dogs to experiment with FEV with, we don’t see any dogs in the Institute. What we do see are cats. There are a bunch of cat corpses all over the FEV labs. Maybe the cats they didn’t give to the mutants they gave to the vats of FEV, and that’s how we got mutant hounds. They are FEV mutated cats.













