[phire]

This case is confusing because there were actually three sides.

Wikimedia (and others) were arguing that the image was in public domain because animals can't hold copyright. PETA were arguing that monkeys should be able to hold copyright. And the original "photographer" was arguing that he should own the copyright because he did everything except push the button.

The only side that actually reached court was PETA, arguing the monkey should hold copyright. And the court promptly ruled against PETA. But that ruling doesn't say the image is public domain, it simply rules the monkey can't hold copyright.

It wasn't even an interesting court case, copyright law is pretty clear that animals can't hold copyright. Nobody (other than PETA) really thought otherwise.

If the original "photographer" actually went to court against the public domain camp, I do think they would have a decent chance of winning back the copyright to that image. But he never scrapped together enough funding for a lawsuit, so it hasn't gone to court.