San Salvador Pupfish Acquired Genetic Variation from Fish on Other Islands to Adapt to New Foods (image) PLOS Share Print E-Mail Caption The most common topology estimated in SAGUARO showing a monophyletic San Salvador Island clade covered 64 percent of the genome. San Salvador Island generalists (red), molluscivores (green), large-jawed scale-eaters (dark blue), small-jawed scale-eaters (light blue), and outgroup species (black) in the Caribbean, California, and Mexico. Credit Emilie Richards and Christopher Martin Usage Restrictions CC-BY Share Print E-Mail 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.