Red-tailed Monkey (Cercopithecus ascanius) lives in tropical rainforest across Sub-Saharan Africa. It feeds on fruits and insects. Its conservation status is Least Concern.
Fascinating facts about the Red-tailed Monkey
- Red-tailed monkeys can swing on a tail twice as long as their body, reaching up to 35 inches. Males grow 12-24 inches long and weigh 7-10 lb, while females are a bit smaller at 6-8 lb. This extra-long, reddish tail acts like a built-in balance pole, letting them zip through the canopy faster than on the forest floor. Their agility helps them escape predators such as crowned eagles and chase fruit across the treetops, boosting survival in dense rainforests.
- Groups of red-tailed monkeys range from 7 to 30 individuals, typically led by a single dominant male. Males leave their birth troop at about six years old, forming all-male bands or wandering alone until they can oust another male. This male-driven turnover often triggers infanticide, forcing females into estrus sooner and ensuring the new leader's genes spread. Such dynamics shape the social fabric and reproductive success of the species across East-Central Africa.
- Red-tailed monkeys travel roughly 1.4 km each day, foraging for fruit, leaves, flowers and insects. Their huge, elastic cheek pouches can hold large food loads, allowing them to collect meals in one spot and eat safely elsewhere. By moving seeds away from parent trees, they act as vital seed dispersers, especially for species like Strychnos mitis in Uganda, where their spit-out seeds help regenerate the forest faster than the trees could on their own.
- The species inhabits a broad swath of Central and East Africa, from the Central African Republic to Kenya, with five subspecies each occupying distinct ranges. The subspecies C. a. schmidti spans the widest area, from Congo into Kenya, Tanzania, and Uganda, while C. a. atrinasus is confined to a tiny locale in Zovo, Angola. This geographic spread shows the monkey's adaptability to varied forest types, from primary rainforests to secondary and swamp forests.
- Red-tailed monkeys have been found with high levels of flame-retardant chemicals in their bodies, similar to other primates studied in Uganda. These pollutants travel from urban centers, like the 60,000-person town of Fort Portal, through air and food, reaching even protected forests such as Kibale National Park.
Sources
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At a glance
RangeSub-Saharan Africa
HabitatTropical rainforest
DietFruits and insects
About the Red-tailed Monkey
As the first light of dawn breaks over the forest canopy, the red-tailed monkey stirs, its agile form unfolding from a tangle of branches as it begins its daily quest for sustenance. With a fluid, almost ethereal grace, it navigates the dense undergrowth, its large eyes scanning the surroundings for the ripest fruits and tender shoots that will sustain it throughout the day. In its native habitats, this charismatic primate reigns supreme, its burnished coat and vibrant tail a testament to its status as a master of this lush, vibrant world.
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Red-tailed Monkey photographed on Feravox
