Empty molted shells of hundreds of crabs are washed up on the high tide line beside the Egg and I am starting a collection of these exoskeletons from the size of a penny to the full size of my hand. A crab might molt 20 times in its life and I’d like to find an equivalent number of spent shells of increasing size to tell something of this remarkable process.

There must be scores of places to read about this online, but I referred to this link http://www.afsc.noaa.gov/Kodiak/shellfish/cultivation/crabGrow.htm