Armadillo Lizards Fighting

Question
QUESTION: My brother has three Armadillo Lizards, and while he was on vacation and I was caring for them, one of the lizards tried to get into a hiding spot with another, and the one already in the hiding place first pushed the other away, and when it came back, it attempted to bite it. There was one other lizard in the hiding place, so could this mean that this is a male lizard fending off another from a female?

Also, the lizards droppings have chunks of white stuff in them... Is this normal? I'm afraid I may be feeding them wrong.

ANSWER: Daer Steve,
thank you for your question.
The white stuff is uric acid. Armadillo lizards, like most desert animals, don't produce much liquid urine and they excrete it in that form to safe water. That's absolutely normal.

One animal is always the dominant one, so it's normal that the weaker one is not allowed to bask while the dominant one is there. It shouldn't happen all the time, though, some dominant lizards won't allow the weaker ones to eat, baskor come out of hiding at all. Two males usually cannot be kept together, if there are two males in the tank, that may become a serious problem because they won't stop at dominating, they will fight sooner or later unless the tank is really big so that they can avoid each other.

Here's some more info on them:
http://www.tallbo.com/
The website is about Cordylus tropidosternum, which are usually sold as Armadillo lizards, although that is not their correct name. True armadillo lizards (Cordylus cataphractus) are very rare because it's illegal to catch and sell them in their natural habitat, so I assume that you are dealing with C. tropidosternum.
I hope I was of some help to you
Jennifer

---------- FOLLOW-UP ----------

QUESTION: Ok... He took one of the two that were fighting back to the store. But the one of the two fighting is now going after the third one. His head is covered in very sull, pale scales... Could this aggression be cause by the lizard being about to molt?

Answer
I don't think that the skin shedding make them aggressive, I have never heard of that before. Most lizards get a bit sluggish at most. Have you sexed the lizards? It's possible that this is mating behaviour which can look aggressive or the enclosure is just too small for two lizards, even though they are normally social. How vis is it? Do you offer more than one basking spots, hiding places ect.? That may help.