Its exoskeleton, or 'armour'. A new one has already grown underneath it as molting begins, and only needs some time to harden out afterwards.
Arrow crabs have 5 pairs of legs and can regenerate any of them when it molts and sheds it's exoskeleton although it may take several molts to completely regenerate it.
Molting
Some arthropods do molt after reaching maturity. However, most arthropod species only molt before adulthood is reached and not afterward. King crabs are an example of an arthropod that still molts occasionally after reaching maturity.
Shedding external covering refers to the process in which an animal, typically reptiles or arthropods, molts or sheds its outer layer of skin or exoskeleton to allow for growth or to remove parasites. This shedding process helps the animal to maintain its health and vitality.
If an animal sheds its skin it will have a new clean layer already prepared underneath and if the old one comes away cleanly then it will remain in one piece.
A butterfly molts after gaining wings.
Yes, a male peecock sheds or molts its tail feathers to get bigger ones. Kind of like White tail deer.
They express the characteristics inherent to arthropods. All insects are arthropods. Not all arthropods are insects.
Yes! Every bird molts. If it's a bird, it molts.
After shedding its exoskeleton, a crayfish hides because it becomes vulnerable to injury and attacks from predators. The crayfish sheds its exoskeleton when it needs to grow. It can take two to three days for a crayfish to re-grow a new and larger one.
NO Mammals are not arthropods. Arthropods are insects.
Millipedes do not emerge from cocoons. They typically molt their exoskeleton several times as they grow, but they do not go through a stage where they are enclosed in a cocoon. When a millipede molts, it sheds its old exoskeleton and emerges with a new one that is soft at first but eventually hardens.