An international team of evolutionary biologists and natural scientists has found that the population decline of the Tasmanian devil is likely leading to genetic changes in another local predator—the spotted-tailed quoll. In their study, reported in Nature Ecology & Evolution, the group collected quoll tissue samples and conducted a genetic analysis and comparison of quolls over 15 generations to learn more about their evolutionary history during the time the devils have been in decline. A Research Briefing outlining the work has been published in the same journal issue.