45+ Helmet Crab Meaning Images. Here are very important facts regarding their surival. Hermit crabs are anomuran decapod crustaceans of the superfamily paguroidea that have adapted to occupy empty scavenged mollusc shells to protect their fragile exoskeletons.
The hermit crab is named that way because they live alone in a shell that was not theirs to begin with.
There are only a few species that can do this. Hermit crabs must occupy shelter produced by other organisms, or risk being defenseless against nature and its occupants. They may not be as cute or cuddly as a puppy, but they are fun to play with and will teach kids the meaning of caring for another living creature. Hermit crabs (affectionately called hermies) are great pets to have.