Why Are There Lizards in Cincinnati?

In 1951, a young George Rau Jr. smuggled 10 European wall lizards from Lake Garda, Italy, to Cincinnati in a sock.

While walking the other day, I noticed a Lizard running along. I’ve traveled to a lot of different places, but I have never seen lizards outside of tropical locations. Well, I had to do some research to find out the back story to find out the historical background on how lizards ended up conquering Cincinnati.

Origins of an Invasion

In 1951, a young George Rau Jr., stepson of retail magnate Fred Lazarus Jr., smuggled 10 European wall lizards from Lake Garda, Italy, to Cincinnati in a sock. Released in his East Walnut Hills backyard, these lizards, now called Lazarus lizards, thrived. Consequently, their population exploded, with estimates suggesting millions now inhabit the city. Initially, only three of the original lizards likely reproduced, yet their descendants have spread across Ohio, Kentucky, and Indiana.

Closeup on a European wall lizard, Podarcis muralis sitting on a stone — Source: Henk Wallays / Getty

Ideal Urban Habitat

Cincinnati’s hilly terrain and climate, similar to Milan’s, provide a perfect home. For instance, the city’s stacked-rock retaining walls offer countless crevices for hiding and hibernating. Moreover, these non-native reptiles, scientifically Podarcis muralis, feed on insects, competing with Ohio’s native lizards. Thus, their high density up to 1,500 per acre has earned them a unique place in Ohio’s wildlife code.

Evolving and Expanding

Surprisingly, Lazarus lizards are evolving. According to biologist Eric Gangloff, they’re growing larger with longer limbs, likely to evade urban predators like house cats. Additionally, they’re adapting to warmer city temperatures, thriving despite heavy metal exposure. However, their spread along railroad tracks and rocky slopes raises concerns about native species displacement.

Cultural Impact

Now, a Cincinnati mascot, Lazarus lizards, adorn murals and carousels. Nevertheless, their invasive status sparks debate. While locals embrace them, experts warn of ecological impacts. Ultimately, these resilient reptiles continue reshaping the Queen City’s landscape.