Squinting Bush Brown Butterfly (IMAGE) Cell Press Caption This photograph shows the African butterfly Bicyclus anynana wildtype form (left) and with mutations in the melanin pathway, in particular in the gene yellow (right). Credit William H. Piel and Antónia Monteiro Usage Restrictions Credit required License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.