Robert Irwin celebrates birthday at Australia Zoo

The zoo let children in for free in honour of the youngest Irwin, who took to social media on the weekend to ask people to come and enjoy the animals.

“As 2020 comes to an end, I think we’re all looking back at what a crazy year it was … It’s been very challenging for all of us,” he said in a video on Sunday.

“I wanted to reach out to all of you to let you know you’re all invited (to my…