Good read as always, Frank.

I came across a very interesting journal article of interest for this species (and a New York Times article as well). I believe you cited these researchers in your article:

Lizards Cooperatively Tunnel to Construct a Long-Term Home for Family Members by Steve McAlpin, Paul Duckett and Adam Stow

It can be viewed at the following url:
PLOS ONE: Lizards Cooperatively Tunnel to Construct a Long-Term Home for Family Members