06/24/2026
10 European common wall lizards arrived in southwest Ohio in the 1950s, brought home by a boy who smuggled them in his luggage after a vacation in northern Italy. Now, hundreds of thousands – and maybe even millions – of them scamper through urban parks and neighborhoods across Cincinnati. Results of a study co-authored by Professor Emeritus H. Lisle Gibbs show that the lizards experienced reduced genetic variation after their arrival, but the loss didn’t seem to have an effect on population health.
Evolution, Ecology and Organismal Biology at The Ohio State University
Non-native wall lizards living in Cincinnati, Ohio, have thrived against the odds thanks to an ability to expand their population more quickly than any inbreeding-amplified harmful genes could weaken their chances for survival, new research suggests. An estimated 10 of these European common wall li...