By applying a self-preservation function and communication capability, we investigated the emergence of the emotional behavior of robots to propose an "evaluation function for self-preservation," a "model of endocrine system," and a "MA model." We also developed a, new hardware platform, WAMOEBA-3, to install our new knowledge into the robot. WAMOEBA-3, a wheel type, independent robot, was designed for easy maintenance and customization. As a new function for WAMOEBA-3, we introduced an evolutionary function for the acquisition of reactive motion that uses an interactive evolutionary computation method. We show the results of simulation experiments and discuss real world applications.