While it may be true, as the old adage goes, that 'birds of a feather flock together,' what is less certain is how the feathers on those birds come to have their distinct patterns and colorations.

The different patterns in each feather are determined by the arrangement and differentiation of pigmented and apigmented melanocytes. They found the melanocyte distribution could differ from the front ...

On the open savannas of East Africa, a flock of vulturine guinea fowl looks almost unreal. Bodies are patterned with crisp black and white lines. Chests and backs glow a deep, cobalt blue. Against the ...