 He appeared on several episodes of "The Tonight Show with Jay Leno".A 2000 FedEx commercial with Irwin lightheartedly dealt with the possibility of occupational death from snakebite and the fanciful notion that FedEx would have saved him, if only FedEx were used.Under Irwin's leadership, the operations grew to include the zoo, the television series, the Steve Irwin Conservation Foundation (later renamed Wildlife Warriors), and the International Crocodile Rescue.