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Order: Primates (Primates)
Suborder: primitive primates (Prosimiae)
Family: bushbabies or Galagos (Galagidae)

Thick-tailed bushbaby / Brown Greater Galago (Otolemur (Galago) crassicaudatus) are nocturnal. They were given the name because of their baby like screeming when marking their territory. Food consists of fruits, small reptiles, eggs, birds and plant saps.






Order: Primates (Primates)
Suborder: monkeys (Simiae)
Superfamily: old world monkeys (Cercopithecoidea),
Family: old world monkeys (Cercopithecidae)

In Kenya and Tanzania occur 2 species of baboons. Mostly in the Eastern to central areas you meet the yellow baboon (Papio cynocephalus) which is slighter built than the olive baboon and its fur is more yellowish. They live in large mixed groups spending most of the time foraging, playing and fixing the rank order. The troops move slowly through their area while taking plants but also insects or meet. If you find baboons they will catch your attention for quite a since they are constantly active. Monkeys are always interesting to watch….

Baboons are very caring mothers preferring those males to mate with which assist in raising the babies. 















Baboons are omnivorous. Their diet consists of leaves, grass, herbs, insects and meat if they can get it. Where baboons are fed by human activities they stick to the same place which has a big influence on their social behaviour. Time usually spent searching for food is now available and increases aggression among members. By feeding on more nutritious food they get pregnant faster after having given birth and so the number grows faster as well. Sticking to the same sleeping trees favourites the reproduction of internal and external parasites.









Olive Baboons (Papio cynocephalus anubis) are typical inhabitants of open savannah with scattered trees. They are omnivorous. They weigh between 27 and 44 kg and males have longer canines than lions. After a gestation period of 6 month she gives birth to 1 young. In the beginning the other has to support the fresh born since it can not hold itself tight enough. With 6 – 12 weeks they start riding in the jockey style.

Caring male carries a young (right). These males are favored by females to mate with.

The red private part area of the females shows the status of the hormones. The young ones copy the behaviour of the adults very soon..


















Showing the pinkish colour of the eye-lids reduces aggression.

Baboons sleep on trees, where they are more or less safe from leopards. To minimise the increase of parasites trees to sleep on keep on being changed.

Baboons  and Impalas like each others company. More eyes detect danger earlier.






Patas monkey




Patas or hussar monkeys (Erythrocebus patas) are ground-dwelling monkey. They live in groups with 1 dominant male. Their long legs enable them to run up to 55 km/hour.

With various calls they alert troop members so they know what kind of enemy is approaching and to react correctly.

They are found in dry savanna from East to Westafrica.

Photo Marina Meger, Queen Elizabeth National park, Uganda
















Green monkeys (Chlorocebus aethiops - former Cercopithecus aethiops) are distributed in different subspecies over all savannahs Africa’s. They feed on fruits, herbs, flowers and small creatures. Several adult males dominate a group. Males, born in the group have to go, when reaching adulthood at 2 years, since they are not tolerated any longer by the chefs.

An adult male shows defensive behavior as he was chased from taking food. Monkeys and baboons learn very quickly how and where to get easy meals. If they are not controlled they can cause big damage.

Green monkeys differentiate between around 30 different sounds. If you watch them carefully they can make you alert of the presence of a leopard or a snake.



A female gives birth to mostly 1 young at the age of 3.5 years after a gestation period of 200 days. The new-born can instinctively hold itself in the fur of the mother. When sucking it often takes both tits at the same time in its mouth. The mother allows other members of the group to take care of her baby.

This young one was curious and as I approached it too close it ran to seek protection at mama’s chest..









This youngster knows already as well how to fish palm fruits out of the water. It copied from older animals.















Sykes or Samango or White-throated monkeys (Cercopithecus albogularis)
are found in the Aberdares, Arusha and other forested areas East of the Great Rift valley. They live in small families with 1 dominant male and several related females.
They are not that noisy as baboons or green monkeys. Several subspecies with different colouring occur in different areas in Africa.

Photo from the Aberdares. The white throat is well visible.



Blue monkeys (Cercopithecus miti) live in Lake Manyara and West of the Great Rift Valley. Different subspecies are in different areas in Africa. This one is from Lake Manyara.







Rotschwanz Meerkatze
Rotschwanz Meerkatze_Kopf






Black-cheeked white-nosed monkeys or locally named Red-tailed monkeys (Cercopithecus ascanius schmidti) belong into a group of white nosed monkeys. They are real forest dwellers and move in troops with several members. The whole group is more spread in Westafrica in various species and subspecies. In Kenya they can be found in Western Forests (Kakamega) or a different species in the western part of the Masai Mara.









Luckily the number of the black and white Colobus monkeys (Colobus guereza kikuyuensis) is increasing and they are more often to be observed. Troops typically number 6 to 10 individuals. The average in prime habitat is c. 9, including 1 adult male, 3 or 4 females, 2 sub adults, 1 juvenile, and 1 infant. Territories are remarkably small: from 5 – 25 ha. They have the ability to subsist on mature leaves and fruits of few different trees. This diet requires a special digestive system and does not provide a lot of energy. Therefore the stomach is divided into 4 chambers. One of them contains a lot of bacteria which break down cellulose into digestible sugars. Some bacteria are digested as well providing protein.

This subspecies is found in Central Kenya.

Colobus is a Greek means crippled. Their thumb is only a stump and allows a firm grip on trees when jumping easier.

Picture taken at Elsamere, Naivasha.















A white young is born and taken care of by all family members.
Photo from Elsamere/Naivasha.




The missing thumb helps grabbing between the thorns.














Kilimanjaro Colobus (Colobus guereza caudatus) with a still white young. This subspecies occurs on the slopes and in forests of Kilimanjaro and neighbouring areas like Arusha National park, where the picture was taken.




Matschie's Colobus (Colobus guereza matschiei) is the subspecies found in Mau forest and further West in Kakamega forest.

The systematic is a bit complicated. They vary in colouration but the life style is very similar.






Peter's Angola Colobus


Peter’s Angola Colobus (Colobus angolensis palliatus) occur in coast forest in Kenya and Tanzania. Their live style is very similar to the Guerezas.
Shimba Hills















Zanzibar red colobus or Kirks’s red colobus (Procolobus kirkii) only occurs in a sanctuary in the coastal forest on the main Zanzibar island as an isolated population.
It’s closest relative is the Iringa Red colobus. Molecular analyses show that it has diverged from its sister species about 600.000 years ago.




Udzungwa or Iringa Red Colobus (Procolobus gordonorum) is endemic to the Udzungwa forest. In large troops they search for food mainly in the morning and afternoon. They are wholly arboreal. The species is endangered due to habitat destruction.

Foto Claudio Comolli










Order: Primates
Suborder: (Haplorhini)
Part order: Old world monkeys (Catarrhini)
Superfamily: Human relatives (Hominoidea)
Familie: Apes (Hominidae)

Chimpanzees live in families and are herbivorous as well as carnivorous. Males can weigh up to 70 kg and are 1.5 times heavier than females. They forage on the ground and on trees where they also build nests of leaves for resting. Our close relatives are widely documented but to see them face to face is can not been described.