epidermis

Originally written by Vanessa Pike-Russell and Lisa Loseke updated by Stacy Griffith Arthropods (e.g., insects and crustaceans) must molt their exoskeletons periodically in order to grow; in this process the inner layers of the old cuticle are digested by a molting fluid secreted by the epidermal cells, the animal emerges from the old covering, and the new cuticle hardens. The molting process is a central, and nearly continuous, part of a crab’s life. A hermit crab may spend 90% of its time getting ready to molt, molting, or recovering from a molt. There are many dangers to molting including predation, difficulty in movement as musclesRead More →