At the American Society for Cell Biology's 2006 conference, scientists will describe their latest research on patterning, on the molecular and systems level. The scientists looked at how feather ...

ONLY very recently was I able to read Nickerson's paper1 on barred pattern formation in chicken feathers. Nickerson's experimental analysis by means of melanophore transplantation according to H. B.

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 ...

Estrogen derived from the ovaries transforms the default (primitive) male-type feathers into female-type feathers by regulating the hormone systems within the feather follicles. Birds possess unique ...