Male Proboscis “Dutch” Monkey running on the Beach.
This photo was taken in June 2011 in Bako National Park (North of Kuching the capital city of Sarawak, Borneo, Malaysia), where this adult proboscis monkey past me in full speed to find cover in a nearby tree. This monkey also goes by the nickname “monyet belanda” (Dutch Monkey) or “orang belanda” (Dutchman) as the locals noticed that the Dutch colonists often had a similar large belly and a long nose.
The big nose is thought to be used to attract females and is a characteristic of the males, reaching up to 7 inches in length. The females also have big noses compared to other monkey species, but not as big as the males. Also, when the animal becomes agitated its nose swells with blood, making warning calls louder and more intense.
This primate (Nasalis Larvatus) is restricted to Borneo and can be found in small groups living along river edges and mixed mangrove-nipah forest. Proboscis Monkeys are active in early morning and the late evening, arboreal and good swimmers. Adults males can grow up to 20 - 25kg, have a long pendulous nose, a big bloated belly and a thick tail up to 73cm long.