Toyota Motor Corp on Monday unveiled a doe-eyed palm-sized robot, dubbed Kirobo Mini, designed as a synthetic baby companion in Japan, where plummeting birth rates have left many women childless. Toyota's non-automotive venture aims to tap a demographic trend that has put Japan at the forefront of aging among the world's industrial nations, resulting in a population contraction unprecedented for a country not at war, or racked by famine or disease. "He wobbles a bit, and this is meant to emulate a seated baby, which hasn't fully developed the skills to balance itself," said Fuminori Kataoka, Kirobo Mini's chief design engineer. "This vulnerability is meant to invoke an emotional connection."