Naruto the Monkey
This picture is so perfect that it almost looks fake. Rest assured, though, that this monkey really did jump in to take a selfie before moving on. The monkey's name is Naruto, and the monkey's camera he used belonged to photographer David Slater.
After this 2011 snapshot, there was even a dispute on who owned the copyright to the image. After six years of this copyright dispute, it was determined the image belonged to Slater.