Bindi Irwin is growing up so fast!

Steve Irwin's daughter, who turns 17 this July, posted a new black & white photo to her Instagram, and it's almost hard to believe how much older she's gotten.

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"To be beautiful means to be yourself. You don’t need to be accepted by others," writes Bindi. "You need to accept yourself."

Before Steve's tragic death in September of 2006, his daughter Bindi stole our hearts as she joined him numerous times on his various TV series,' including The Crocodile Hunter Diaries.

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Bindi takes after her father in a lot of ways, sharing his love for animals...

Conservation...

And family.

PHOTOS: Stars and Their Adorable Pets!

She's also very wise to the science of dogs and cuddles.

You rock, Bindi! Keep being amazing.

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