The photogenic Dusky Langur, also called the Dusky Leaf Monkey and the Spectacled Langur, is native to forests of Burma, Thailand and Malaysia.
Diet is mainly leaves, but also fruit and seeds.
The word "langur" comes from the Hindu for long tail, which all langurs have to help them in the tree-tops.
The thighs are silvery grey.
They live in groups of typically a couple of dozen monkeys and communicate mainly by facial expression. The babies have orange fur.