To give you an example of the things I agonize over when creating this strip: should I use the word "bat" here, or make up some new species? I finally decided, yes, there are colonies of non-sentient bats living out in the Fringes of the Basement. They fly up into the Forest at night, eat
flutterbys and get eaten in turn by the
giant Spyders.
Also, it occurs to me that Digger is now just about the last character in the strip using his
orignal dialogue-font. ("Invisible Killer"; a bonus point to anyone who can figure out why that's its name...)