Re: Out of curiosity
Wikimedia would just reply with a counter-notice reiterating their belief that the image is public domain and you would be back to square one where the matter would have to be decided in a court of law.
Although it does sound strange, WIkimedia have an arguable case that since the monkey was the author and non-human works do not qualify for copyright protection, it is public domain. [I'm not saying they would win a case, but being backed by the legislation is a good starting point :-) ]