Mealworm beetles are very different from humans in how they grow up.
They pass through 4 different body forms in their complete life cycle. As we have seen, the first form is the egg. A beetle remains as an egg for 7 to 10 days before hatching into the second form, the larva. They are very tiny when the first hatch, and it takes them about 3 months before they enter the next body form. However, to grow, they must shed their skin every so often.