Exoskeletons

Exoskeletons are external skeletons that provide structural support and protection to certain organisms, particularly invertebrates like insects, crustaceans, and arachnids. Unlike endoskeletons, which are internal structures found in vertebrates, exoskeletons are made of chitin or calcium carbonate and serve multiple functions including defense against predators, prevention of water loss, and facilitation of movement.Exoskeletons enable these organisms to maintain their shape and protect vital organs while also allowing them to move efficiently. They must undergo molting, or ecdysis, to grow, shedding the old exoskeleton to allow for the formation of a larger one. In modern applications, the term "exoskeleton" also refers to robotic devices designed to support and enhance human movement, providing assistance to individuals with mobility impairments or augmenting strength and endurance for various tasks. These devices are often used in rehabilitation, industry, and military settings.