They do have dentals that are extremely specialized for eating vegetation that really doesn't want to be eaten. The large canini are only a trait of males from which we could very reasonably determine that they're used for intraspecific fights if we have both male and female fossils available.
Actually I would consider the anatomy of a camels skull one of the easiest to determine the habits of the species off due to its very specific adaptions.
We can determine that they live in an area with rough vegetation which are to that degree only arid climate zones. That requires high mobility to scan the area for scarce vegetation and even scarcer water sources. You'd probably also assume they move in larger groups if fighting is so relevant for males that huge fangs turned into a selected trait. From that alone you can make many assumptions that probably align with the actual lifestyle of those animals.