On the one hand, Wikimedia contends that the selfie taken by a female crested black macaque in Indonesia in 2011 is owned by the monkey, but on the other it argues that the photograph is in the public domain because a photograph cannot be owned by a monkey. But there is no principled reason to deny photo credit to this fellow primate, other than our prejudice against the brilliance, autonomy and inherent rights of non-human animals. A court should rule that the monkey owns the copyright and could easily appoint a guardian or trustee to collect the royalties owed her for Wikimedia's use of the photograph. The court could further direct that those funds be used to benefit the macaque and her family, including to help preserve their habitat, plant fruit trees, reduce encroachment, etc.
Since the macaque has the intellectual ability to operate the camera and take not just the famous selfie but many others, she is entitled to own the corresponding intellectual property rights to the photos. Indeed, this is precisely the situation that all photographers are in, including the human photographer in this situation, David Slater, who admits that he takes thousands of photos, most of which are of no value, in pursuit of that rare "money shot."