I have a German cockroach (blattella germanica) wild captured and living in a plastic cup. My question is about an observed behavior. It (Herman) appears to be depositing fluid drops from its mouth on the walls of the glass. It looks like water. I can't find any literature on this behavior. Anyone know why or what this is? My speculations are 1. Regurgitation for colonial benefit. 2. Secretion of some sort of hormone. Or 3. Some sort of defense mechanism (perhaps it is volotile)
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