(Phys.org)—A team of researchers with the EcoHealth Alliance has narrowed down the list of animal species that may harbor viruses likely to jump to humans. In their paper published in the journal Nature, the group outlines the process they used to collect viral data on mammals around the globe, sorted them into groups and listed where they live. James Lloyd-Smith with the University of California offers a News & Views piece on the work done by the team in the same journal issue.