image: This shows the head of an Old German owl breed of domestic pigeon. This breed has a short beak and a crest of feathers on the head. This image relates to a paper that appeared in the Jan. 31, 2013, issue of Science Express, published by AAAS. The paper, by Michael Shapiroat University of Utah in Salt Lake City, Utah, and colleagues was titled, “Genomic Diversity and Evolution of the Head Crest in the Rock Pigeon.” view more
Credit: [Image courtesy of Sydney Stringham]