poewk is artificial so it CANT

No

Poewk is literally a statue brought to life No

I don't think so. Maybe, maybe not. I don't know.

Poewk is a statue made of Bubblerite, so no. However, rare Clamble might be.

All the wublins were created by the Wubbox, so they have no relatives. However, the wubbox must have taken inspiration from somewhere...