Invertebrates, because they need to molt to grow. Hermit crabs molt underground and can stay there for weeks to months to learn more about molting please follow the link below this answer. Thanks ;)
Hermit crabs are nocturnal, so it sounds like your hermit must have gone to sleep. Mine has slept for a week, once! If you get home and you find your hermit crab out of it's shell and looking see-through, then it has molted. Hermits usually molt on their 'birthday' but stay in their shells a while prior to molting.
No they don't. I've had two crabs die in my aquarium and they stay at the bottom.
they stay in the same place
yes
nope! most people own hermit crabs and have them in tanks with sand.
Because they are really silly. And adorable. :) and they need to stay that way sooo y does it matter
No, they're HERMIT crabs which means they could stay in a cave or some other outside-ish enviroment.
No, they stay the same color year round, except for a brief molting period.
3 million days
NO they don't because they they stay in shell
Smart enough to stay off of my penis.