Many animal behaviors provide a clue to animal intelligence. The underlying neural mechanism is still unsolved in many cases, but the study stimulates relevant studies in the field of artificial intelligence and robotics. Robotic researchers have interest in how sensory system is connected to motor actions and what kind of learning mechanism or what coordination in the sensorimotor mapping is helpful to the efficient operation of machines or their parts. In the field of artificial intelligence, researchers try to find optimal strategies with the acquired environmental information. A neuroethological approach to animal behaviors, which handles the interaction of neural circuitry to explain the behavioral concept, can find many clues of animal cognition. It also provides a systematic and integrative foundation of intelligence needed in robotics and artificial intelligence, which might lead to intelligent systems or robots.