A hermit crab will change shells once it outgrows the current one it’s inhabiting. During a process called molting, which typically occurs once every 12 to 18 months for adult hermit crabs, but ...

M ost people think of hermit crabs as small beach dwellers that make good pets. Although they start small, hermit crabs can grow to a large size. In the wild, they can live more than thirty years ...