Years after Steve Irwin’s tragic 2006 death, when a stingray’s barb pierced his heart as he filmed a documentary, his legacy lives on through his zoo, the Australia Zoo, and his family.

Bindi and Robert Irwin both penned heartfelt tributes in honor of what would have been their dad's 63rd birthday.

Steve 'The Crocodile Hunter' Irwin died age 44 off the coast of Queensland on 4 September 2006, after being pierced in the chest by a stingray while filming a nature documentary. Bindi was eight ...

Steve Irwin ... from a stingray in 2006. He was filming an underwater documentary off the coast of Australia at the time, when he was struck in the heart by the stingray's barb.

Steve — a wildlife conservationist and beloved television personality — died in September 2006 at age 44 after being pierced by a stingray barb. He is survived by his wife, Terri Irwin ...