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Bindi Irwin Celebrates Brother Robert's Birthday: 'I See So Much of Dad in Everything You Do'

Robert Irwin/ Instagram https://www.instagram.com/robertirwinphotography/. bindi irwin's 24th birthday.
Robert Irwin/ Instagram https://www.instagram.com/robertirwinphotography/. bindi irwin's 24th birthday.

Robert Irwin/ Instagram

Bindi Irwin is honoring her little brother Robert Irwin on his birthday.

The Australian conservationist celebrated her sibling on Instagram on Wednesday (which was Thursday morning — his birthday — in Australia).

"Happy Birthday to the taller Irwin sibling and greatest brother in the world," Bindi wrote alongside a photo of the two jokingly acknowledging their height difference. "You light up our lives with your hilarious sense of humour and kind heart."

Referencing their father, Steve Irwin — who died in 2006 at age 44 — Bindi continued: "I see so much of Dad in everything you do and I know he would be beyond proud of you. We all are. Thank you for being such a good uncle to Grace and fantastic brother to me and Chandler."

"We love you and can't wait to celebrate today!" she concluded her post.

Robert responded in the comments: "Love you B 🧡😊 thank you!"

RELATED:  Woman Presses for 18-Year-Old Robert Irwin's Number — but Fans Tell Her to 'Just Let It Go'

The siblings are close friends, and last month, Robert revealed his sister's been hoping he'll start dating soon.

Robert shared how Bindi, 24, wants him to take some of the attention off of her after she welcomed her daughter Grace Warrior, 20 months, with husband Chandler Powell in March 2021.

"It's pretty funny because of course, my sister has gotten married and had a kid and there's always a lot of rumors that go around," he told E! News. " 'Bindi's having a second kid' or 'they're having triplets.' "

Bindi Irwin, Steve Irwin, and Robert Irwin
Bindi Irwin, Steve Irwin, and Robert Irwin

Robert Irwin/Instagram (Left to right) Bindi Irwin, Robert Irwin and Steve Irwin

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Robert added: "There's always so many crazy things that happen so Bindi always says, 'Robert, it's your turn now. You gotta find someone to take the heat off me!' "

The animal conservationist — who created a new photography book titled Robert Irwin's Australia — said that he doesn't have any "big scoop" to discuss when it comes to his current relationship status, but will "get there" eventually.