This form includes verbal or speech developmental apraxia, perhaps the most common form of the disorder. Constructional apraxia affects the person's ability to draw or copy simple diagrams or to construct simple figures. Oculomotor apraxia is a condition in which patients find it difficult to move their eyes.
Medium ones about the size of a golf ball may molt every four to six months and stay buried for about one to three months. The smaller hermit crabs may molt as often every month or even every few weeks for the tiniest ones, and may stay buried to do it for only a couple of weeks or months.
If you properly take care of your hermit crabs they can live up to 15-30 years old, which is a very long time. That's basically from your teens (if you get a Hermit crab then) all the way to you being middle aged and if you did get a Hermit Crab at around 30+ years, it may stay with you for the majority of your life.