The Inuzuka clan has been part of Konoha for years, starting with one man who decided to turn dogs into ninja. Soon he developed jutsus that both he and the animal familar could use, keeping the jutsus only within his family who also started training ninja dogs. Over the many years Inuzukas have become extremely close to canines, mutations eventually causing members resembling them slightly and gaining some of their abilities such as enhanced hearing and scent. Though anyone can learn an Inuzuka jutsu the jutsus are kept secret among the clan and the enhanced hearing, smell, and ability to understand canines and get the raw idea of what animals say has become a bloodline. The clan is known for it's ties to the canine species, as most members have an animal familar who acts as a partner to the clan member. Clan members can use jutsus to take on canine-like abilities. the abilities of the clan are that they have enhanced smell, hearing, and the ability to talk fluently with canines, and crudely with other animals.
