First let me say that iv never studied them in nature and have never even seen them in nature, however many captive behavioural observations broth me to this conclusion, aim sharing my tots with you in hope that someone will shed more light on this subject. Expressing my tots in English so that everyone can understand my concept is quit unlikely, however ill give it my best trying not to omit any valuable information’s. Monitors start as eggs in a nest, even though we do not fully understand nesting, we do know about temps humidity and general egg husbandry, now hers some of my views, I think growing foetus can produce some heat, this allowing the middle eggs to stay a few degrees higher, possibly acting as sex determination, this natural process is altered when we separate eggs and place them side by side in incubators, next when eggs hatch I believe IMPRINTING is a key to varanids survival, many animals have a window of about few minutes to a few hours where IMPRINTING happens, usually imprinting is a maternal bond, however I believe it’s a social bonding tool for monitors, this allowing them to grow as a commune and eventually pair bonding and reproducing, there are some advantage for young monitors to grow in such commune safety being primary. Many things can bring us to this thinking, years of trying to pair up WC, or raising young WC monitors in pairs or group only to see them kill each other after a brief separation, same clutch monitors in general can be separated and reintroduced at will, even CB from deferent clutches are more difficult to mix. If we applied this logic to wild monitor populations, then most copulations are from siblings or from dominant males (father) as most intruders are aggressively chased away.
Pleas consider this as thinking out laude, contrary to many folks aim not afraid to be wrong.
Ps. I also think that inbred birds and reptiles can evolve and adjust to ever changing habitat faster
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