Proboscis Monkey

Natively found on the island of Borneo!
Proboscis Monkey Scientific Classification
Scientific name
Nasalis larvatus
Proboscis Monkey Physical Characteristics
Brown, Grey, Red, White, Tan, Orange
15 – 20 years
Top speed
15 mph
7kg – 22kg (15lbs – 48lbs)
Proboscis Monkey Distribition

Proboscis Monkey Classification and Development

The Proboscis Monkey is a tool- sized arboreal primate that is located specifically in the jungles of Borneo. The male Proboscis Monkey is not just one of the biggest monkeys in Asia yet they are additionally among the globe’s most unique creatures, having a lengthy and fleshy nose and a huge, inflamed tummy. Although having a little bigger noses and an extending tummy are specifying of the Colobine (Fallen Leave) Monkey family, these functions on the Proboscis Monkey are greater than increase the dimension of their closest family members. The Proboscis Monkey today nonetheless, is very endangered in its natural surroundings with logging having a damaging effect on the special environments were the Proboscis Monkey is located.

Proboscis Monkey Composition and Appearance

The male Proboscis Monkey is substantially bigger than the female coming up to 76cm in elevation and evaluating greater than 20kg, both having a lengthy tail which can quickly coincide size as the body, which is made use of to assist the Proboscis Monkey to stabilize whilst it is jumping with the trees. Grownups are generally light orange to brown in colour with a richer coloured head and shoulders and grey arm or legs and tail, and a light pink face. The extending nose of the Proboscis Monkey creates with age with babies having even more monkey- like noses and older fully grown males having bigger and a lot more spheric ones. Although researchers are still unclear regarding precisely why the nose of the Proboscis Monkey expands so large, it commonly thought to be to do with bring in a female friend as the noses of females are a lot smaller sized.

Proboscis Monkey Distribution and Environment

The Proboscis Monkey is natively located on the island of Borneo where it was as soon as relatively prevalent (with the exemption of main Sarawak) throughout the seaside mangrove woodlands. The Proboscis Monkey populates really special environments and is most typically located in mangrove swamps, yet is additionally recognized to live in seaside mangroves, riverine woodlands and lowland rain forest supplying that there is an excellent resource of fresh water. Because of their fallen leave- consuming diet, the Proboscis Monkey has actually additionally handled to make use of a particular niche within these marsh woodlands and are the biggest creatures located occupying the greater degrees of the cover. These uncommon areas nonetheless, have actually been greatly impacted by logging definition that Proboscis Monkey populaces are ending up being a lot more separated as they will certainly stay clear of gotten rid of woodland or booming locations.

Proboscis Monkey Behaviour and Lifestyle

The Proboscis Monkey is an extremely friendly animal that populates the bordering mangroves in soldiers which contain in between 2 – 30 people and are included a leading male, with approximately 10 females and their young. Female Proboscis Monkeys have a tendency to lead the look for food and look after the young and the male protects his army by making loud honking audios and revealing his teeth. Proboscis Monkey soldiers are recognized to gather with each other though when near to water or in a location where food remains in wealth, together with during the night when soldiers remainder and rest in the security of the mangroves near to the water’s side. Because of the reality that the Proboscis Monkey calls for an excellent fresh supply of water such as an overload or river, they are exceptional swimmers and are recognized to take a trip throughout really deep locations to locate food or to leave coming close to risk.

Proboscis Monkey Reproduction and Life Process

Female Proboscis Monkeys bring to life a solitary baby after a gestation duration that lasts for around 5 and a half months, which has actually dark coloured hair and a blue face and will certainly not create its grown-up colouration till it is 3 or 4 months old. Youthful Proboscis Monkeys are looked after not simply by their mom yet additionally by the various other grown-up females in the army, and will certainly stay with their mom till they are virtually a years of age when young females have a tendency to stick with the army and young males will certainly entrust to sign up with a team of bachelor males. Although Proboscis Monkey soldiers have a tendency to stay relatively secure, it is not unusual for both males and females to relocate to an additional army. Proboscis Monkeys have a tendency to live for approximately twenty years in the wild and are unable to duplicate till they go to the very least 4 years of ages.

Proboscis Monkey Diet and Victim

Although the Proboscis Monkey is practically an omnivorous animal, the mass of their diet is included hard mangrove leaves which are drawn from the bordering trees. It is due to the reality that they are fallen leave- consuming monkeys, that the Proboscis Monkey has a huge and inflamed tummy that is composed of chambers including an unique cellulose absorbing microorganisms that aids to damage down the fallen leaves. This is nonetheless, an extremely slow-moving procedure and suggests that the Proboscis Monkey’s tummy is frequently complete and can include approximately a quarter of the person’s complete body weight. The Proboscis Monkey supplements its diet by consuming various other plant issue consisting of shoots, seeds and immature fruits together with a passing insect once in a while and does so primarily in the trees, choosing not ahead to the ground.

Proboscis Monkey Predators and Hazards

Because of the plus size and nearly totally tree- residence way of life of the Proboscis Monkey they have really couple of real predators in their natural surroundings, with the exemption of Clouded Leopards that quest the Proboscis Monkey when it is compelled to be on the ground. They are additionally preyed upon by Crocodiles whilst in the water yet Humans are the most significant hazard to this special animal. Not just have Proboscis Monkeys shed substantial locations of their all-natural environments to logging yet they have actually additionally not adjusted well to living near to Human task and are consequently being pressed right into smaller sized and a lot more separated pockets of their indigenous areas.

Proboscis Monkey Intriguing Truths and Functions

The Proboscis Monkey invests most of its life really near to water and is an experienced swimmer, helped by its partly webbed feet which assist it to both paddle in the water and stroll on the unsafe financial institutions. The Proboscis Monkey is really active whilst in the trees and is additionally recognized to jump right into the water from elevations of approximately 50ft! The nose of the male Proboscis Monkey can expand so large that it suspends over its mouth and needs to be dismissed to eat, nonetheless, when calling the nose tidies and is believed to make the monkey’s audio resemble louder to both excite fully grown females and to daunt competing males in the location. The big nose of the male Proboscis Monkey is additionally recognized to end up being red and inflamed when the person is either mad or thrilled.

Need to know even more fascinating truths concerning Proboscis Monkeys? Read: “10 Unbelievable Proboscis Monkey Truths.”

Proboscis Monkey Partnership with Humans

The Proboscis Monkey was as soon as pursued by regional individuals as they are viewed as a cooking special in some locations, yet today the capture and murder of these unique animals is prohibited and has actually assisted this scenario a little. Nonetheless, individuals have actually had a much larger effect on the Proboscis Monkey with the logging of its all-natural environment generally for logging, expanding Human negotiations and to clear land for hand oil vineyards, which has actually brought about radical population decreases in the species over the previous number of years specifically. They are nonetheless, of wonderful attraction to lots of people around the globe and have actually created tourist passions in particular locations.

Proboscis Monkey Conservation Status and Life Today

Today, the Proboscis Monkey is noted by the IUCN as an animal that is Endangered in its natural surroundings and can encounter termination in the future if much better preservation actions are not take into location. Population numbers are believed to have actually stopped by approximately 80% over the previous three decades with numbers remaining to reduce. There are believed to be around 7,000 Proboscis Monkeys left in the wild today and really couple of are located in bondage as they merely do not react well to the fabricated problems.


  1. David Burnie, Dorling Kindersley (2011) Animal, The Definitive Visual Guide To The World’s Wildlife
  2. Tom Jackson, Lorenz Books (2007) The World Encyclopedia Of Animals
  3. David Burnie, Kingfisher (2011) The Kingfisher Animal Encyclopedia
  4. Richard Mackay, University of California Press (2009) The Atlas Of Endangered Species
  5. David Burnie, Dorling Kindersley (2008) Illustrated Encyclopedia Of Animals
  6. Dorling Kindersley (2006) Dorling Kindersley Encyclopedia Of Animals
  7. David W. Macdonald, Oxford University Press (2010) The Encyclopedia Of Mammals
  8. Proboscis Monkey Facts, Available here:
  9. Proboscis Monkey Information, Available here:
  10. About Proboscis Monkeys, Available here:
  11. Proboscis Monkey Conservation Status, Available here:

Relate animals

Abyssinian Guinea Pig

They are one of the oldest breeds of guinea pig

Ackie Monitor

The ackie monitor has a spiny tail which it uses as in self-defense.


The Albertonectes had the longest neck out of other Elasmosaurids.

American Bully

Though the American bully was bred to look intimidating, it makes an extremely friendly family pet!

Latest Animal News