Me say a few things.....LOL.......
Zonata have a shorter window of time to do what they need to do is my basic reply. It gets colder much faster at higher elevations versus a topical sea-level environment that likely affords longer periods to thrive, greater abundancy of prey items, & the evolutionary history that has molded these creatures into what they are today. So....what think you? 
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Jerry Kruse
www.zonatas.com
And God said, "Let there be zonata subspecies for all to ponder..."

