In 2011, a Crested Black Macaque in Indonesia stole the camera of photojournalist David Slater taking numerous photos, one of which is the selfie seen above.
Slater is going at it with Wikipedia over the licensing of the photo, claiming Wikipedia is displaying the photo without permission. Wikipedia, on the other hand, believes the photo falls under the Public Domain because even though Slater owned the camera equipment, the photographer in fact was the macaque, not Slater.
I must admit that animals who show their intelligence, even if it's not much more than a healthy curiosity, are absolutely fascinating to me. Every day we see evidence to support various levels of intelligence in creatures we thought just existed here, virtually unaware of their surroundings.