Biologists reveal the genetic 'switch' behind parrot color diversity

From the Carnival in Rio de Janeiro to the shoulders of pirates: parrots are synonymous with color for people across the world. In a study published in the journal Science, scientists from The University of Hong Kong, together with an international team led by scientists from BIOPOLIS-CIBIO (Portugal) have uncovered for the first time a "switch" in the DNA of parrots that controls their wide gamut of colors.