In a new paper published in BMC Evolutionary Biology, researchers found that changes in a receptor protein, called the aryl hydrocarbon receptor 2 (AHR2), may explain how killifish in New Bedford Harbor evolved genetic resistance to PCBs. (sciencedaily.com)
The results suggest that evolution of resistance in independent populations of killifish converges on the same target gene. (sciencedaily.com)
African turquoise killifish live in temporary ponds of water in Zimbabwe and Mozambique that disappear with the dry season. (sciencedaily.com)