How do marine creatures like crabs and lobsters molt and grow new exoskeletons?

Marine creatures like crabs and lobsters molt their exoskeletons in order to grow larger. Molting is a complex process that involves a series of steps, and it can take several days or even weeks to complete.

During the molting process, the old exoskeleton is shed, and a new one is formed underneath. The new exoskeleton is soft and flexible, and it takes a few days for it to harden and fully develop. Once the new exoskeleton is fully formed, the crab or lobster will consume seawater to expand its body and crack open the old exoskeleton. The animal will then back out of the old exoskeleton, leaving it behind.

After molting, the crab or lobster will be soft and vulnerable until its new exoskeleton hardens. During this time, the animal will hide and avoid predators. Molting is an important process for these creatures, as it allows them to grow and develop new exoskeletons that protect them from predators and the environment.