Bindi Irwin and Chandler Powell released a koala into the wild to celebrate their engagement.
The happy couple got engaged in July this year, and to mark the special occasion, they took a rescue koala from Australia Zoo - which is owned by Bindi's family - and released it back into the wild, where it can continue to live freely.
Speaking in a preview clip for the upcoming season finale of 'Crikey! It's the Irwins!', Bindi said: "The first time I met Chandler, he was a holding a koala. So it only seemed right to celebrate our engagement by releasing a koala back into the wild."
The clip then shows Bindi, 21, and Chandler drive the koala back into the bush, and find the perfect tree for her release.
After a little encouragement from the couple, the marsupial climbs up the tree and leaves the cage behind.
The release was a first for Chandler, who appeared moved by watching the animal charge into her new life.
He says in the clip: "I am just living my dream. I get to do what I love, with the person I love, continuing the work that Steve and Terri started."
Meanwhile, Bindi recently said she wants to "make a difference" in the world by continuing the legacy left by her late father Steve Irwin, who died in 2006 after he was pierced in the heart by a sting ray whilst filming a documentary.
She said: "I believe every person is put on this planet for a reason and we all have a purpose and some of us find our purpose early on in life. My dad always used to say, 'I don't care if anyone remembers me, I care if people remember my message.'
"For me, I really feel like I've been put on this planet to make a difference.
"When Dad first came up with the term 'wildlife warrior', what he meant was for us to stand up and speak for those who cannot speak for themselves and that feels like my calling in life."