I came home today to find my little tavetana on the bottom of the cage today,  it was very sad.  I knew he was older but I didn't think he was that old.  Poor guy.  I got him about two years ago and had the best personality of all my chams.  I feel pretty bad about it.  He loved to come out and about on his free range (and occasionally, the house). He will be missed.  My favorite Cham of all time.