Tuesday, March 15, 2011

Black - and - White Colobus Monkey

As promised yesterday I am posting about the other species of monkey which we saw on the way up to El Doret last Thursday: the Black-and-white Colobus monkey.
 The Black-and-white Colobus monkey peers through the branches at us (Photo credit: Sue Spangenberg)
The name “colobus” is derived from the Greek word for “mutilated,” because unlike other monkeys, Colobus monkeys do not have thumbs.
Their beautiful black fur strongly contrasts with the long white mantle, whiskers and beard around the face and the bushy white tail. The Eastern black-and-white is distinguishable by a U-shaped cape of white hair running from the shoulders to lower back, whereas the Angolan black-and-white has white hairs flaring out only at the shoulders.

The Eastern Black-and-white Colobus monkey which we saw in the highland forests on the way up the mountain to El Doret (Phote credit: Sue Spangenberg)
The Colobus lives in all types of closed forests, including montane and gallery forests. Bamboo stands are also popular dwelling spots for the colobus.

The Colobus is the most arboreal of all African monkeys and rarely descends to the ground. It uses branches as trampolines, jumping up and down on them to get liftoff for leaps of up to 50 feet. They leap up and then drop downward, falling with outstretched arms and legs to grab the next branch. Their mantle hair and tails are believed to act as a parachute during these long leaps.
Colobus monkeys live in troops of about 5 to 10 animals: a dominant male, several females, and young. Each troop has its own territory which is well defined and defended from other troops. Adult troop members, especially males, make croaking roars that can be heard resonating throughout the forest.
Fighting over mates rarely occurs. There is no distinct breeding season although most mating probably occurs during rainy season. Because a female suckles her infant for over a year, an average of 20 months passes before she gives birth again. Other troop members often handle very young infants. In the first month when the infant still has a pink face, it may be handled three to five times an hour in resting groups. Infant mortality is high even though the young are carefully tended.
The newborn colobus monkey is covered with white fur, and at about one month gradually begins to change color, finally gaining the black and white adult coloration at about 3 months. The infant monkey is carried on the mother's abdomen, where it clings to her fur. As it matures it spends a lot of time playing with its mother and certain other adults and at about 7 months begins playing with other juveniles. The games they play exercise their bodies, and as they get older, these develop into wrestling matches and mock displays.
Photo credit: Sue Spangenberg
Colobus monkeys are strictly leaf-eaters and spend most of their time in treetops, preferring to eat the tender young leaves found there. However, complex stomachs enable them to digest mature or toxic foliage that other monkeys cannot.
At one time the Colobus was hunted excessively for its beautiful fur, leading to its extermination in some areas. Its skin has been used to make dance costumes, hats and capes.

Today, the greatest threat to its continued existence comes from loss of habitat as forests are cut down. Since coming to live in the valley, we have witnessed regularly burning of the forest on the mountains. This is to in order for subsistance farmers to make fields to plant crops. The trees are also used to make charcoal for sale. Sadly the Colobus monkey's habitat is being destroyed daily. The large trees in which this beautiful primate lives, are being chopped down and thinned out as we watch.

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The Swahili word for monkey is tumbili


  1. I'll bet this tumbili is awesome to watch fly through the trees. Surprising they can do that without thumbs. Do they also use their tails?

  2. It's sad. In Kericho where Jonah is from they have a monkey sanctuary. How fortunate for the monkeys. Hopefully more of these will spring up as the poor people really have to make their money any way they can. Sad for the people and sad for the monkeys. When you have a large population it is so hard to sustain this kind of income generation. Even here in Canada we have huge tracts of lands and forests and far fewer people, yet the forests and the territory of wild animals is often in danger.

  3. Hi Gaelyn, we did see them fly from one branch to another, and the sight is glorious. I think they use their tails, as other monkeys do. Incredibly long part of their bodies. Hope you're having safe travels to your mum.

    Hi Penny; yes, my heart breaks for the problem which is worldwide, not only here in Africa. So many people who are only just making it, some not. So it's a matter of survival. I just wish they would not burn huge tracts of forest and bush and then leave it. That is what is happening above our valley. Thanks for always visiting. Bless you my friend.

  4. Hi Jo -- Yes, Penny is right. Here we have this huge country, barely populated, and yet we have threatened animal species. It is unbelievable how little care some humans have for anyone but their own individual selves.
    If I'm not commenting in the next month, it's because we're off and away, trains and boats and planes. But I'll do my best where internet connections exist.
    Luv, K

    Kay, Alberta, Canada
    An Unfittie's Guide to Adventurous Travel

  5. Wow !!! Those monkey are so beautiful. You are so lucky.

  6. Thanks for this Jo - great descriptive post - these Tumbilis don't occur here in Nam (only the Vervet Monkey)

    interesting that they don't have thumbs hey?

  7. Thank you for a most informative and well-researched post, Jo!!!

  8. he's an unusual monkey. You must have been chuffed to see one. It is so sad how man is taking away animal's habitats. It happens here too.

  9. This little monkey seems to be very shy still very intrigued by your camera!

  10. Very interesting, Jo. All I know about monkeys is what I was taught in school --and what I see in our zoos... Thanks for sharing such great info.

  11. I honnestly am more interested in monkeys than in birds to tell you the truth. Birds are also sitting in the trees here, but monkeys not (yet) apart from my neighbor but he sits in his garden chair.

  12. Jo, cool shots of the monkey. I love seeing wildlife in its own habitat. It seems like the loss of habitat is happening everywhere. Here we are losing farmland to housing (which is not needed). So birds that need farmland are disappearing. Very sad.

  13. The colobus is just beautiful. Sad that it's habitat is vanishing, as is happening to so many species.


Thank you for visiting my blog and taking the time to leave a comment. I appreciate your feedback. Jo