I stand corrected. I was led to understand that temperature did have an influence on sex of the young lizards, both by the breeder I got mine from (and mine do seem to be a pair) and it is also mentioned in "The Bearded Dragon Manual" though temperature is not the complete answer. At temperatures ranging from 82 F to 86 F a larger percentage of males are produced at the cooler end of the scale. I do not know personally as mine are yet to breed.