Board Thread:Theories and Speculation/@comment-3001903-20160306051108

Aside from Kurama, who we all know the origins of. Plenty of animals, including Kisame's Sharks, Enma, Ningame, Ibuse, Gengetsu's Clam, Kakashi's Ninken Pack and more, have been subjected to the Summon Technique.

At least the three Summons used by the three Leaf Ninja that survived their battle with Hazno have been revealed to have their own settlement they reside in. So does that hold true for every other Summon? 