POLPO - polpo common or piovra (Octopus vulgaris Cuvier; 1797) is a cefalopode of the Octopodidae family. Often one refers to us to the polpo using the word polipo; but the correct name is polpo; Examples of polipi are the anemones of sea and the madrepore (the manifacturing corals of the coral reefs). One of the more intelligent invertebrates is considered; for example is demonstrated that the polpo common it has the ability to learn if subordinate to test of learning for association. Subordinate to test during which a prey locked up in a jar is administered it; the polpo has demonstrated to be able to open the jar in order to reach the food. Press colored from naturalistic treaty of XIX the century