Ed Pon wrote: > I've got the research data stored > at some inconvenient place. Shame on you. Romer reports that the gender is determined during the first 800 h (a month) of development. If a clutch is moved from an initial temperature (23 C) to a final temperature (29 C) during the first 72 h of development, the ratios were characteristic of the final temperature (29 C). From 72 to 800 h the change in sex ratios was linear, meaning that as the time of moving the brood approached 800 h the ratios got closer to those characteristic of the initial temperature (23 C). Julio Melgar