In the Marais poitevin, a vast wetland area covering parts of the Vendée and Deux-Sèvres departments in western France, an invasive species has disrupted the local ecosystem. The Florida turtle, originally imported for the pet trade in the 1990s, was released into the wild by owners who found the turtles too large to keep in their aquariums. Although the European Union banned the import of these turtles in 1997, they had already established themselves in the region, where they have thrived and multiplied. The Florida turtle, known scientifically as Trachemys scripta elegans, is larger and more aggressive than the European pond turtle, the native species. The European pond turtle, which typically grows to 15–20 centimeters and can live up to 60–70 years, now faces intense competition from the Florida turtle for nesting spots and food. This competition has led to the European pond turtle being listed as "near threatened" by the International Union for Conservation of Nature (IUCN) and protected under French law. The Marais poitevin, with its network of canals, ditches, and marshes, has become a perfect habitat for the Florida turtle. These turtles are omnivorous, feeding on fish, tadpoles, amphibian larvae, and aquatic plants. Their voracious appetite has led to a depletion of resources that would otherwise support a variety of local wildlife, contributing to a decline in native species, including the European pond turtle. In addition to competition from the Florida turtle, the European pond turtle is also threatened by the gradual loss of its wetland habitat. Activities such as draining marshes and mechanically cleaning ditches destroy the turtle’s hiding places and reduce the availability of suitable nesting areas. Environmental experts warn that releasing non-native pets into the wild can have far-reaching and often unpredictable effects on local ecosystems. While conservation efforts are underway to protect the remaining habitats of the European pond turtle, their success depends largely on public awareness and responsible actions by individuals.