Safari Ltd Life Cycle of a SpiderSafari Ltd Life Cycle of a Spider A female spider can lay up to 3,000 eggs. Many species then protect the eggs in a silk sac, which is then attached to the web so the mother can protect them. Once the eggs hatch, spiderlings emerge, resembling smaller versions of adults. They eventually leave the web to grow into adult spiders and repeat the process. Characteristics: This educational figure set helps children learn about the spider s life cycle, from