"Captain Feedback" wrote in message ups.com...
I've never seen my hermit crabs doing this before. Any ideas as to
what might be provoking them to do this?

Mine are happily doing the same thing...
I guess this is normal behaviour of venturing for search of food.

If you ask why hermits are climbing wall to eat algae,
you probably see no reason in people climbing K2 ;-)
http://www.netia.pl/k2/zdjecia_k2.html?z=8#foto