Our lifecycle blocks are thoughtfully designed to represent animals and insects that the children may be familiar with. These blocks wonderfully illustrate the lifecycle of a moth, butterfly, chicken and frog. Children can see how the animal develops through a series of changes to their adult presence, as reflected by the size of the block with the fully grown animal being represented by the largest block and the eggs the smallest. These blocks are brilliant as a tool for early literacy and science but also great for stacking and practicing hand-eye coordination.