Range Minimu Query: Given an array A[1,n] of n ordered objects (such as numbers), a Range Minimum Query (or RMQ) from i to j asks for the position of a minimum element in the sub-array A[i,j]. RMQs can be used to solve the lowest common ancestor problem.
The reasons that we do not eat or recommend shellfish are very similar. Shellfish are bottom feeders and feed on parasites and dead skin, many times from dead animals. They do not have appropriate digestive and filter systems to purify toxins and parasites from their body and flesh.
We hope that gives you some understanding to why we do not eat or recommend pork or shellfish, nor do we really even consider them food. As with all food that we do eat and recommend, we always promote getting the highest quality that you are able and eat nutrient dense and clean food.