knob billed ducks sarkidiornis melanotos Knob-billed Duck Knob-billed Duck - Sarkidiornis melanotos
Description
References Praetorius C, Sturm RA, Steingrimsson E

77 (suppl 9)
Metabolism Clinical and Experimental Journal 2010;59:1190-1199
The special sites reflect the regional diversity of the skin structure and function, as the skin microanatomy varies in different anatomical regions in terms of thickness of the epidermis, distribution of adnexa, distribution of melanocytes, structure of the dermal-epidermal junction, structure of the dermis, and blood supply [7]

It doesn't just bind to the MC1 receptor (the tanning receptor) and stop there

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