同位语从句的判断剖析

The tiger moth ,indeed, is a clear example of a concept that many predators intuitively understand that creatures with brightest coloration are often the least suitable to eat

这句话基本结构剖析是：一个名词concept +定从that many predators intuitively understand +同位语从句that creatures with brightest coloration are often the least suitable to eat 修饰concept

但我刚开始断句成了concept that many predators intuitively understand that creatures with brightest coloration are often the least suitable to eat 整个都看作是同位语从句，后一个that做understand的宾语，如此语义逻辑好像也通顺，是不是这句两种解法都可行，望老师解说

你刚开始的理解是正确的。第一个that是从属连词，不是关系代词。所以整个都是同位语从句，第二个that从句是understand的宾语从句。