Spotted turtles are the most cold-tolerant Ontario turtle species and are the first to emerge to bask in the spring — sometimes sunning themselves next to mounds of melting snow. Spotted turtles are thought to take 20–30 years to mature. Nesting occurs in June, when females lay a small clutch of eggs. In rare cases, a female may lay two clutches of eggs in a single summer. Spotted turtles feed on a wide variety of invertebrates, vegetation and dead creatures.