June 10, 2026
Wall lizards in Ohio reproduced their way out of a genetic bottleneck
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 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. They’re called “Lazarus lizards” in a nod to the boy’s family, founders of the Lazarus retail chain.