Robert Irwin has become a star of his own while carrying on his late father Steve Irwin's legacy. Born in December 2003, Robert is the second of Steve and Terri Irwin's two children. He and his older sister, Bindi Irwin, began following in their parents' conservationist footsteps from an early age by appearing alongside them on TV and at the famous Australia Zoo. Robert was only 2 years old when Steve died at age 44 in 2006 following a stingray injury.