When exposed to oxygen, it develops a bluish color. Tomalley is the lobster's liver. It turns green when cooked and is considered a delicacy. Coral is the egg mass of a female lobster. Cooking colors the tiny eggs a deep coral or red.
Lobsters grow by molting.
This is the process in which they struggle out of their old shells while simultaneously absorbing water which expands their body size. Following this cycle, the lobster will weigh approximately one pound and reach minimum legal size. No one has yet found a way to determine the exact age of a lobster. However, based on scientific knowledge of body size at age, the maximum age attained may approach 100 years. They can grow to be 3 feet or more in overall body length.