United Kingdom, March 12 -- Robert Irwin still asks late father Steve Irwin how to "move forward" after his death.

The 21-year-old TV star and conservationist has opened up on how he still communicates with the Crocodile Hunter legend, who died aged 44 after being pierced in the chest by a stingray in 2006.

In a tearful interview two decades after his dad's passing, Robert told Anderson Cooper's All There Is podcast: "There are moments where... I'll sit... I'm always closest to Dad when I'm in the middle of nowhere, you know, when I'm out in the bush.

"There are absolutely moments where I'll be hit with this sense of... it's warmth - it's like something kind of wraps around me...

"I will absolutely sit and just say: 'How do I, like, h...