A series of recent papers show how good places to live shapes family life in Egernia lizards. Our research – headed by Geoff and his students Ben and Tom – have revealed that the distribution of crevice sites influence group size, polygyny, and the opportunity for sexual selection. This affects the offspring too, 
because the distribution of adults determine the costs and benefits of dispersal. What about males? They do not like when females mate outside of the pair bond. This can disrupt family living since it is the aggression between fathers and offspring, and between siblings, that make the youngsters pack their bags and move. You can read the details here, here, and here.
