There are lots of followers to recruit in Skyrim. However, animal companions are few and far between. You can have one humanoid follower and one animal companion, but many non-animals can take the place of an animal companion if you're looking for a unique ally.
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The Dwarven Spider and Dwarven Sphere are two companions in the Dragonborn DLC that can act as animal companions, and they're among the best followers in Skyrim. There are a few steps
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