Proboscis Monkey, Nicknamed "Dutch Monkey", is an Endangered Species in Kalimantan's Mangroves

The proboscis monkey (Nasalis larvatus), an endemic primate of Borneo, is easily recognizable by its long and large nose, especially in adult males. This physical characteristic has earned them the popular nickname "Dutch monkey." The moniker developed during the colonial era, as the proboscis monkey's large nose and reddish face were thought to resemble depictions of the Dutch at the time. This is not a scientific name but a local appellation that has taken root among the people of Kalimantan. The large nose is more than just an aesthetic feature. In adult males, the hanging nose, which can cover part of the mouth, is believed to help amplify their calls and attract females. Males are also significantly larger than females. Proboscis monkeys have hairless faces, and their body colors are striking: reddish-brown on the back, while the belly and limbs are grayish-white. Their tails are very long, almost as long as their bodies. Another unique aspect of the proboscis monkey is its potbelly. They possess a specialized digestive system with a sacculated stomach that aids in fermenting leaves and fibrous plant matter. Their diet primarily consists of leaves, fruits, flowers, and bark, with occasional consumption of insects and crabs. They tend to favor plants with high crude fiber and protein content. Despite their appearance, proboscis monkeys are adept tree climbers and strong swimmers. Their webbed toes assist them in swimming and crossing rivers, and they are known to leap directly from trees into the water. Proboscis monkeys live in unique social groups. These include groups composed of a single adult male with several females and their offspring, as well as all-male groups. They are primarily arboreal, spending most of their time in the forest canopy, and often choose… This article was originally published on Mongabay