'Proud beyond words': Bindi Irwin, mother Terri and boyfriend Chandler Powell take sweet family selfie ahead of Robert's appearance on Jimmy Fallon
He's the son of Crocodile Hunter Steve Irwin, who terrified Jimmy Fallon with a boa constrictor when making his US late-night TV debut back in February.
And it seems that the US talk show host wasn't too phased by the slippery sucker, because Robert 'Bob' Irwin is making a return to the show on Thursday night.
Ahead of his appearance, Bob's sister Bindi posted a sweet family selfie to Instagram, featuring mother Terri, boyfriend Chandler Powell and family friend Luke Reavley all posing in the Tonight Show green room.
Gang's all here! Bindi Irwin, mother Terri and boyfriend Chandler Powell take sweet family selfie ahead of Robert's appearance on Jimmy Fallon on Thursday night
'Super excited to be back in TheTonightShow studio ready for @robertirwinphotography to be on the show again!,' Bindi said in the photo.
'Proud beyond words of my extraordinary brother. tune in tonight to see him showing Jimmy Fallon some gorgeous animals,'
Bindi's followers were quick to echo her pride in her 13-year-old wildlife warrior brother.
'Go get 'em Robert,' one fan gushed, while another was quick to point out the growing similarities between Robert and his late father Steve.
'Robert's looking more and more like your dad! such a beautiful family, inside and out,' they said.
Big time: Bob's sister Bindi posted a sweet family selfie to Instagram, featuring mother Terri, boyfriend Chandler Powell and family friend Luke Reavley all posing in the Tonight Show green room
The uncanny similarities between the pint-sized wildlife conservationist and his dad were again brought to the fore again recently when Robert appeared on Channel Nine's Today show.
Robert shared a childhood photo of his Dad with host Karl Stefanovic that really rammed home the familial similarities.
'The comparisons are pretty obvious,' Karl said of Bob's passion for nature and wildlife conservation. 'I mean, the apple didn't fall too far from the tree.'
Talk time: 'Proud beyond words of my extraordinary brother. tune in tonight to see him showing Jimmy Fallon some gorgeous animals,' Bindi said in the post
'It was funny,' the 13-year-old wildlife warrior replied with a laugh.
'Mum actually showed me a photo of dad when he was my age recently, and when she first showed me I thought it was just a photo of me.
'I said 'what's the big deal, it's just a photo of me' and she said 'no, that's dad', so it's quite amazing.
Eerie: The uncanny similarities between Robert and Steve were brought to the fore recently when Robert shared a shildhood pic of Steve Channel Nine's Today show. Steve is pictured left
When making his debut appearance on the show in February, those similarities were on full display when Robert introduced the US funnyman to a string of animals, including an African dwarf crocodile, an armadillo and a sizeable boa-constrictor called 'Lady'.
While Robert kept his cool throughout the ordeal, which ended when handlers had to 'unconstrict' the snake from both Robert and Jimmy's arms, the comedian protested: 'she's trying to kill me'.
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