Red-eared sliders and other freshwater turtles are widely kept as pets and frequently released when they outgrow their tanks. The welfare and ecological consequences are significant.
Pet red-eared sliders frequently outgrow the small tanks they are sold in and are released into local waterways by owners no longer able or willing to care for them. Released turtles may survive but cannot return to captivity, and die slowly in unsuitable climates outside their native range. In warmer climates where they can survive, they establish invasive populations that displace native wildlife. The illegal wild collection of threatened freshwater turtle species for food and medicine markets in Asia is depleting populations across Southeast Asia. Turtles collected from the wild and transported in crowded conditions experience significant trauma and mortality.