Florida Scientists Discover Rare New Monkey Species in Congo

Scientists just found something extraordinary hiding in plain sight: a completely new species of monkey in the heart of Africa's rainforests.

A team including researchers from Florida Atlantic University has identified Colobus congoensis, affectionately called "Likweli" by local communities in the Democratic Republic of Congo. This marks only the fifth new monkey species discovered in Africa in the past 75 years, making it one of the rarest finds in modern primatology.

The monkey sports a stunning appearance with mainly black fur and striking orange-cream patches around its mouth and nose, creating a distinctive mask-like face. Weighing about 15 pounds, it's smaller than its colobus relatives and had somehow evaded scientific documentation for decades.

Dr. Kate Detwiler, an associate professor at FAU's Charles E. Schmidt College of Science, served as the study's senior author. Working alongside her was Junior Amboko, an FAU doctoral student and National Geographic Explorer who helped name the species.

The discovery began with a photograph captured in 2008, but it took years of patient investigation before researchers could confirm what they suspected. A clearer image taken nearly a decade later finally enabled the team to conduct genetic, anatomical, and acoustic analyses that proved this monkey represents its own distinct evolutionary branch.

The genetic evidence revealed something remarkable: this species split from its closest known relative about 4 to 5 million years ago. That's millions of years of separate evolution happening quietly in the Congo Basin while scientists searched elsewhere.

Why This Inspires

"This discovery is both exciting and deeply personal," Amboko said, emphasizing how much remains undocumented in the Congo Basin. His work bridges scientific discovery with conservation, showing how local knowledge and modern research can combine to reveal nature's hidden treasures.

Detwiler pointed out that the finding is "reshaping our understanding of African monkey evolution," proving that even well-studied regions can still surprise us. The Congo Basin, already recognized as one of the world's richest biodiversity hotspots, continues to yield secrets that remind us how much we have yet to learn about our planet.

The discovery carries urgency alongside excitement. Researchers warn that Likweli may already face threats from its limited range, habitat loss, and hunting pressure. Finding a new species also means recognizing our responsibility to protect it before it's lost.

The study, published in PLOS One, underscores why protecting the Congo Basin matters not just for known species but for the countless discoveries still waiting in the forest shadows.