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 ...

Sometimes when a new shell turns up, hermit crabs will form a line, biggest to smallest, to see which animal fits the new shell. The next smallest will take that crab’s hand-me-down home, and so on.

September 20, 2017 at 2:57 pm - More than 2 years ago A new species of hermit crab discovered in the shallow waters of southern Japan has been enjoying the perks of living like a peanut worm.