Hello, my bearded dragon Peep has a black spike I'll include a photo. It is not painful and I'm not worried, just curious as to what it might be. It has been there for awhile and it is not residue from insects. [ximg]87949 1095087380[/ximg]
It looks like either a natural discoloration or he may be working on a single scale or patch shed in that area. It's not uncommon for them to shed in small patches or even a single scale at a time like that.