Robert Irwin is remembering his dad, Steve Irwin, 20 years after his death. Sharing an adorable throwback photo of himself as a baby in the Crocodile Hunter’s arms, Robert marked the Sept. 4 anniversary with a simple, heart-wrenching message: “Your legacy is forever.” 💔 The Australian photographer, who has followed in his father's footsteps as a conservationist, was just two years old when Steve died of a fatal stingray injury at age 44. 📸: robertirwinphotography #steveirwin