Desert x desert

[satomi325]

Most snakes use ZZ:ZW sex determination, right? - http://en.wikipedia.org/wiki/ZW_sex-...ination_system
Desert female infertility perhaps is linked to W, similar to male patterned baldness in humans?

I'm not sure. It says 'some' reptiles. But regardless, I meant specifically female chromosome. So either way, I believe that is the main biological issue with deserts.

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