In sharp-tailed grouse (Pedioecetes phasianellus) and prairie chickens (Tympanuchus cupido) the pattern of crown feathers varies according to sex. Crown feathers of males are dark with a buff-colored ...
Spots v stripes A discovery that reveals how bird feathers get their patterns also has implications for regenerative medicine, say scientists. Feathers not only keep birds warm and protect them from ...
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