Alpha male Pig-tailed Macaque just lying about and apparently grinning.
Being opportunistic a troop of Pig-tailed Macaques (Macaca nemestrina) come to the Orangutan feeding platform at the Sepilok Rehabilitation Centre for Orangutans, Sabah, East Malasia, Borneo, South East Asia. This Alpha male was so confident he was happy to lie down on the viewing platform right at our feet.
Canon 450D, zoom lens.
(Featured in Love These Creatures and Other Groups.)