Arthropods are invertebrates, which means their bodies do not have internal bones for support. To compensate for this, they produce a hard exoskeleton made of chitin, a mixture of lipids, carbohydrates and protein, which covers and protects their bodies like a suit of armor. As arthropods grow, they must shed or molt their exoskeletons. They first produce new, softer exoskeletons underneath the old ones. Once their hardened, old coverings crack and shed, they sport roomier, albeit soft, exoskeletons. Arthropods are incredibly vulnerable during the molting process, and will often hide until their new exoskeletons harden.
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During the first two centuries after the crucifixion and resurrection of Jesus Christ, and before the canonization of the Holy Bible as it is known today, the apostolic fathers made known their beliefs on the Christian doctrine of demons and their origins. The letters of these men are some of the very earliest accounts we have concerning the beliefs of early Christians about demons, the characteristics, of demons, and their origins. Some of these men were pupils of the very disciples of Jesus, such as Ignatius, and are near direct messengers concerning the teachings of Christ about the nature of the Enemy.