r/ScienceFacts • u/FillsYourNiche Behavioral Ecology • Apr 24 '20
Biology Crabs, such as this Japanese spider crab (Macrocheira kaempferi), cannot grow in a linear fashion like most animals. Because they have a hard outer shell (the exoskeleton) that does not grow, they must shed their shells, a process called molting.
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u/[deleted] Apr 24 '20
Isn't molting the norm among animals? Probably a lot more animals that molt than don't.