The Irwin family is so excited to celebrate Robert Irwin’s 16th birthday. The son of the late Steve Irwin and mom Terri is growing up, and his family couldn’t be prouder. He spent the day at the Australia Zoo, feeding crocodiles and blowing out candles on a cute rhino cake.

Terri kicked off the celebrations by posting a photo of a newborn Robert in Steve’s arms. “Happy 16th birthday, @RobertIrwin. Your dad would be so proud of you. He has loved you since the moment you were born,” she wrote as the photo’s caption. The heartfelt message had so many fans feeling emotional. “Ok Terri-this picture took me out-I’m smiling and crying at the same time,” one user wrote.

Bindi got in on the fun too. She shared a sweet baby picture of Robert dressed as a chick. “Happy 16th Birthday to the cutest ducky I’ve ever known! Robert, one of the best parts of my life is getting to be your sister. Thank you for being such a wonderful light in my life. You’re amazing and I love you! ,” she captioned the adorable picture.

She posted another of a child Robert checking out a crocodile with Terri. “One of the sweetest photos ever taken❤️ My whole world. It’s incredible that Robert is sixteen now, time sure does fly. Also, Mum is the most beautiful woman in the world.”

Bindi’s fiancé, Chandler Powell, also extended warm wishes to his soon-to-be brother-in-law. “Happy 16th Birthday @robertirwinphotography!” he captioned a photo of himself and Robert. “Our adventures together are always so much fun. Thanks for being such an awesome friend and brother!”

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