Аннотация:Reptiles contribute to the global process of biological invasions, one of the problems accompanying the development of human civilization. The red-eared slider, Trachemys scripta elegans is one of the most popular pet reptiles in the world. Uncontrolled releases of this animal into outdoor water bodies represents a conservational issue. We combinedand analyzed our own original and literature data on geographical distribution and ecology of this terrapin in different parts of Eurasia. The geographical expansion of this reptile overthe territory of Russia is continuing. Robust evidence of successful reproduction and establishment of self-sustainable populations are still absent for the territory of Russia. However,species distribution modelling suggests that successful reproduction is possible in several southwestern regions of the country.