The brown spider monkey (Ateles hybridus), also known as choibo, is a critically endangered primate species endemic to northern South America, with its highest concentration in Colombia and some areas of Venezuela.
This monkey inhabits tall, well-preserved forests, although its distribution is limited due to intense deforestation and habitat fragmentation.
The spider monkey plays a crucial role in the ecology of its environment as a seed disperser, contributing to the maintenance and regeneration of forest ecosystems. Its diet is mainly composed of fruits collected from the tops of trees, although it also consumes leaves and flowers. It is known for its prehensile tail, which allows it to move with agility between the trees—a vital skill for its survival in the forest canopy.
Photo: "EL PATO" Salcedo / WCS Colombia
However, it faces multiple threats including accelerated deforestation, hunting for the illegal pet trade, and the loss of connectivity between habitats.
Its low reproductive rate—one offspring every three years, with females reaching reproductive maturity between 8 and 9 years—exacerbates its population vulnerability. In Colombia, conservation initiatives include the creation of biological corridors and protected areas, as well as community awareness campaigns.
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