ニホンザルの行動に関係する歯の微細な傷のファジイ推論(一般講演7) A fuzzy inference on dental microscars related to the behavior of Japanese macaques

A fuzzy inference was applied to analyze microscars, such as striations and pits on the surfaces of teeth, in relation to mastication and threatening of Japanese macaques. The mastication means the behavior by contacts between maxillary and mandibular teeth. In macaques the threatening behavior occurs between the maxillary canines and the mandibular third premolars. In this paper the results of scanning electron microscopy of these microscars on the teeth were reported, and the reasons of their occurrence and their features in relation to their behaviors were inferred using the fuzzy logic.