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.

When Tim Jerman was a child, he couldn’t decide whether to become a marine biologist or an artist. So he became an artist who created intricate glass sculptures of aquatic life. For “ Hermit Crab ” ...

It’s not surprising to learn that hermit crabs live their happiest lives when they’re in habitats that closely mimic their natural environment. Setting up a natural enclosure helps hermit crabs stay ...