Vanzolini's saki, a reclusive Amazonian monkey named after zoologist Paulo Vanzolini, has been documented on video after decades of scarce records. Although specimens were collected in 1956 and the species remained largely unrecorded in some areas for up to ~80 years, a 2017 rediscovery ended an estimated 60-year gap in observations. The Houseboat Amazon expedition logged about 21 encounters in 2017, and recent footage shared by @livingearthtv adds valuable documentation to ongoing research into the species' behavior, social groups, population, habitat, and lifespan.
Elusive Vanzolini's Saki Filmed in the Amazon — First Confirmed Footage After Six Decades of Sparse Records
Nature photography day image, Tourist photographer taking picture of nature, wildlife photographer exploring jungle, adventure travel and tours concept image© Sarath maroli/Shutterstock.com
Rare and hard-to-find species capture the public imagination because each confirmed sighting can rewrite parts of their story. A recent video shared on Instagram by @livingearthtv documents a surprising encounter with Vanzolini's saki — a little-known Amazonian primate long absent from field records.
Vanzolini's saki (commonly called Vanzolini's bald-faced saki) is one of 16 recognized saki species. Named for Brazilian zoologist Paulo Vanzolini, this monkey is among the least-studied primates of the Amazon; photographic and observational records have historically been scarce, making new footage especially valuable to researchers and conservationists.
A Complex Rediscovery Timeline
The reporting around this species' absence is nuanced. Specimens were collected by scientists in 1956, yet the species went unrecorded in its primary locality for roughly 80 years in some datasets. More commonly cited is a 2017 rediscovery that ended an approximately 60-year gap in confirmed observations. During that year, researchers André V. Nunes and José E. Serrano Villavicencio obtained a specimen that had been shot and brought in by a local resident in the Riozinho da Liberdade Extractive Reserve, Acre, Brazil.
There are 16 species of saki monkey, such as the white-nosed saki pictured here. Vanzolini's sakis, however, are so elusive that little photographic evidence of them exists.©Cavan-Images/Shutterstock.com
What Changed After 2017
The 2017 encounters — including about 21 records reported by the Houseboat Amazon expedition — confirmed that the species persists in at least parts of its historical range. Those observations opened new opportunities for study, helping researchers gather data on behavior, social structure, likely population size, preferred habitats, and lifespan. Because the monkey lives in remote forest areas, systematic fieldwork remains challenging, but each new record significantly improves understanding.
"Rediscoveries like this show how much remains to be learned in remote ecosystems and why careful documentation matters."
While Vanzolini's saki was never formally declared extinct, it had functionally become a "missing" species with very little information. Recent footage and field notes—including the Instagram clip and the Houseboat Amazon expedition reports—now provide the scientific community with fresh leads for conservation and study.
Where to Watch: The Instagram post from @livingearthtv offers a rare glimpse of this reclusive primate; researchers hope more recordings will follow as fieldwork in the region continues.
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