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RE: FARCICAL: Extinction due to "blue balls"



      I'm not really up on my biochemistry, but
wouldn't the embryo of an endothermic dinosaur
determine its own sex if it were based on temperature?
It's sort of a chicken and the egg paradox. Either
body temperature varied during ontogeny, from zero as
an embryo to whatever level an adult could attain, or
didn't, and you have a clutch of females (if the
parents didn't find a way to cool the eggs down to the
ambient air temperature).   

-Waylon R.


        
                
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