Malocclusions occur biologically, and are due to programming found in the DNA in the root of each tooth, and that program interacting with existing conditions in the oral cavity, like space, proximity to other teeth, and tissues in the mouth. So it should be no surprise that all mammals can have malocclusions, not just humans or humanoid apes, and our pets are just as likely to develop them as we are (maybe a little less likely, as the dentition of humans if a complex thing indeed).