ninken and Hiden collaboration jutsu

The Inuzuka clan is known for their use of ninken as fighting companions. The members are also given their own canine partner(s) when they reach a certain age. Thereafter, the shinobi and their dog(s) are practically inseparable. Due to the bond between a Inuzuka clan member and their canine partner(s), their chakra is allowed to mix and is shared between them, adding a feral appearance to the human partners, and makes a bond between them that affords them the use of the clan's Hiden: collaboration jutsu, such as the Fang Passing Fang.