Bindi Irwin: I'm Finally 18! And It's a Total Croc ... (VIDEO)

Bindi Irwin was dangling fresh bait on her 18th birthday and her guests ate it up.

The 'DWTS' champ was back home to celebrate with her mom, her little brother and a bunch of crocodiles at Beerwah's Australia Zoo.

She hasn't forgotten her roots -- she got her hands dirty feeding some crocs for the crowd. But check out the video ... her bro looks like the new daredevil in the family.