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Re: Microraptor biplanes?



I wrote:

Brooding patches are well documented as resulting from temporary morphological and physiological changes to a patch of abdominal skin located within the median ventral apteria.<

To clarify, the changes leading to the brooding patch involve part of the ventral apteria, but also involve portions of the epidermis within the ventral pterylae (feathered tracts) as well.


PTN