Grivet Monkey (Chlorocebus aethiops) lives in savanna grasslands across Sub-Saharan Africa. It feeds on fruits and insects. Its conservation status is Least Concern.
Fascinating facts about the Grivet Monkey
- Male grivets stretch to about 49 cm (19 in) from nose to rump, while females stop at roughly 42.6 cm (16.8 in). Their tails add another 30-50 cm (12-20 in) for males. Weighing between 3.4 kg and 8.0 kg (7.5-17.6 lb), the biggest individuals tip the scales, whereas females stay on the lighter end.
- Grivets cling to water sources like desert travelers clutching a map; they must drink daily, especially in the dry season, so they stay within reach of water. Their core habitat is savanna woodlands. Because they can adapt to many environments, they also appear in other habitats, but the constant need for water keeps their range linked to water sources.
- Female grivets carry their single infant for about two to three months of pregnancy, roughly 60 to 90 days, before giving birth to a newborn that the mother promptly cleans and bites off the umbilical cord. The baby clings to its mother for the first six months, then weans, while its pink face and black hair are replaced by the adult coat after about two months. In the wild, grivets can live up to 13 years, a lifespan that allows several breeding cycles but also exposes them to cumulative threats like habitat loss.
- Since the 1960s, humans have harvested grivet kidneys on an industrial scale to grow poliovirus and adenovirus vaccines, turning the monkey into a silent partner in global health. In 1967, a batch of grivet-derived vaccine sparked a Marburg virus outbreak that killed seven people after 31 vaccine manufacturers fell ill, highlighting the species' role as a disease reservoir. Illegal wildlife trade adds another danger: a London court case revealed a trader offered 134 primate parts, including grivet specimens, for sale online, showing how demand fuels poaching.
- In grivet troops, a dominant male flashes his tail straight up and struts past lower-ranked peers. Groups vary wildly, from as few as five individuals to over 70, forming one of the few multi-male societies among Old World monkeys.
Sources
Every fact above was checked against these pages, and kept only where one of them states it.
At a glance
RangeSub-Saharan Africa
HabitatSavanna grasslands
DietFruits and insects
About the Grivet Monkey
In the sun-drenched savannas of Africa, the grivet monkey dances across the grasslands with an air of irrepressible joy, its agile form weaving through the tall blades with a fluidity that belies its mischievous nature. With eyes that shine like bright marbles, this charismatic primate navigates its domain with a confident swagger, pausing to pluck a ripe fruit or snatch an unsuspecting insect from the air. As it moves, its tawny coat glistens in the warm light, imbuing the landscape with a sense of vibrant, unbridled energy.
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