Many domesticated rock pigeons have the following four coloration patterns on their wings with different amounts of pigmentation: the darkest "T-check" pattern (top left), the slightly less dark ...

Biologists have discovered that different versions of a single gene, called NDP (Norrie Disease Protein), have unexpected links between color patterns in pigeons, and vision defects in humans. These ...

According to a new study, the precise patterning of bird feathers relies on signaling through ectodysplasin (EDA) and its receptor EDAR -- the same signaling pathway known to be crucial for the ...

In a new study, a team led by University of Utah biologists has discovered that different versions of a single gene, called NDP (Norrie Disease Protein), have unexpected links between color patterns ...