They're the same thing.
yes they do live alone by themselves because of course spiders live alone.
Hermit crabs get their name by being of the crab family. The hermit part is because of how they live in a shell, alone. But they are very social creatures and live in the wild in hoards. A hermit crab should never be bought alone, being alone makes them get stressed and die easily.
A child can legally live alone by themselves at age 18 in Georgia. At age 14, a child can choose which parent they would rather live with.
They stay in a pack they do not live alone
Crabs will hide under rocks after they have molted while their new shell is soft. During this time they are very vulnerable to predators. The time it takes for their shell to harden varies by species but for some it is a few days.
Land Crabs live on land and Marine crabs live in water.
The hermit crab was given their names because they live in a shell, alone. But hermit crabs are the very sosial and you should buy at least 3 hermit crabs.
Hermit crabs are very social creatures. if you own one, you should get another on because they hate being alone. I have six and they talk to each other a lot.
hermit crabs live in the intertidal zone
They live in groups; they are very social animals and in the wild can travel in groups of 100 or more.
claws
no , crabs live in fresh water