Board Thread:General Discussion/@comment-24283777-20130529010927/@comment-10344983-20130602184227

OK, interesting theory.

I think it goes something like this, though:

'Pookies' are Yellow, because Yellow is the closest penguin color to skin colors. If you've ever noticed that an adopting 'Mumu' will say 'Tanned Model Leg Pops Out', they mean that they are close to or actually pretending to be humans.

That is my belief on why 'Pookies' are Yellow.