Whether the chicken or the egg came first, it’s always a puzzle. Developing imagination, concentration, cognitive competence, operational ability, and composition ability. The chicken growing process toy, through a toy, presents the process of a chicken growing up to the children. The picture is vivid, the color is eye-catching, and the number of blocks is suitable. It can cultivate children’s imagination, concentration, cognitive ability, hands-on ability, composition ability and so on. The baby grows up day by day and is curious about the things around him and her. This is an interesting nesting stacking puzzle to learn about chickens, eggs and their life cycle while developing fine motor control.