Physiological and Biochemical Zoology: Ecological and Evolutionary Approaches, Vol. 83, No. 1 (January/February 2010), pp. 78-86 (9 pages) Abstract Stressors encountered during avian development may ...

Feathers are the essence of birds. Without them, birds could not fly or attract mates. But how exactly do feathers form molecularly? Experimentally testing one current hypothesis, developmental ...

Alteration of the expression of the co-called 'Sonic Hedgehog' gene can transform feet scale and wing feathers. While a transient over-expression of the gene can permanently turn feet scales into ...

1. Introduction to the morphology, development, and ecology of feathers -- 2. Molecular and cellular mechanisms of feather development provide a basis for diverse evolution of feather forms -- 3. The ...

At first glance, feathers may seem like simple parts of a bird’s body. But if you look closer—under a microscope or through a scientific lens—they reveal an intricate story of evolution, biology, and ...

Scientists identified two genes that make some pigeon breeds develop feathered feet known as muffs, while others have scaled feet. The same or similar genes might explain scaled feet in chickens and ...

SALT LAKE CITY, March 15, 2016 - University of Utah scientists identified two genes that make some pigeon breeds develop feathered feet known as muffs, while others have scaled feet. The same or ...