Staring straight into the camera, lips pulled back into a grin - it could be regarded as a perfect "selfie".
The series of "self-portraits" of a crested black macaque monkey were shared around the world over the internet and on social media.
But the now famous images are at the centre of a bizarre dispute over who owns the pictures.
David Slater, the British nature photographer whose camera captured the picture, has asked Wikimedia, the organisation behind Wikipedia, to remove the image.
He claims its inclusion in a media library that allows other websites to use it free of charge is harming his ability to make a living.