Chameleons are relatively long-lived compared to many other types of lizards. In captivity, chameleons can live for up to 10 years, although many do not live that long due to a lack of care. In the wild, chameleons can live for several years, but the exact lifespan will vary depending on the species and environmental conditions. For instance, some species of chameleons may only live for a few years, while others may live for over a decade. Overall, it's difficult to measure the lifespan of chameleons because there are so many different species, and each species may have its own unique lifespan.