**2. Defining the Area of Inquiry**

As is well-known, religion is a notoriously slippery term, and it is understood in disparate ways by different scholars. It is therefore useful to establish a working definition. For this investigation, I will use the broad collection of human behaviors and ideas that evolutionary models of religion are often used to explain, as proposed by Boyer and Bergstrom (2008, p. 112):


The nature of the evidence for Ammonite religion is not robust enough to say something about each of these categories. For example, there is essentially no evidence for moral intuition connected to nonphysical agency. On the other hand, there is material evidence for rituals, but such evidence often only allows for the reconstruction of the basic outlines of rituals.
