For the first time in recorded conservation history, a species declared Extinct in the Wild has clawed its way back to a formal endangered status. The scimitar horned oryx — a striking, pale antelope native to North Africa — was downlisted by the IUCN Red List from Extinct in the Wild to Endangered in 2023 C.E., a milestone that scientists say proves what global cooperation and long-term commitment can achieve.
At a glance
- Scimitar horned oryx: Once widespread across North Africa, the species was declared Extinct in the Wild by the IUCN in 2000 C.E. after hunting for horns and meat drove its wild population to zero.
- Wildlife reintroduction: A self-sustaining population now thrives in Chad’s Ouadi Rimé–Ouadi Achim Faunal Reserve, built from founding herds sourced from leading conservation zoos including Whipsnade Zoo.
- Extinct in the Wild initiative: The oryx is the first species evaluated in a landmark 2023 C.E. study — published in the journal Science — to have its IUCN status formally downlisted following the research.
How a species came back from the edge
The scimitar horned oryx, known scientifically as Oryx dammah, once roamed the Sahara and Sahel in vast herds. By the 1980s C.E., unregulated hunting had sent populations into freefall. The last confirmed wild sighting came before the turn of the millennium.
Recovery efforts began as early as 1985 C.E., when the Zoological Society of London (ZSL) partnered with the Sahara Conservation Fund and other organizations to carry out feasibility studies. The goal was to ensure any future reintroduction would have the best possible chance of lasting success.
The coordinated reintroduction program, led by the Environment Agency of Abu Dhabi (EAD), eventually placed animals sourced from zoo populations back into Chad’s Ouadi Rimé–Ouadi Achim Faunal Reserve — a protected area roughly the size of Scotland. The herd has since grown into a self-sustaining wild population.
What the science says about zoos and extinction
The oryx comeback is not just a single success story — it is also evidence for a broader scientific argument. In February 2023 C.E., ZSL researchers published a study in Science that was the first comprehensive evaluation of all 95 plant and animal species that had survived only in human care since 1950 C.E.
That research concluded that conservation zoos hold genuine potential to reverse extinction — not just slow it. The scimitar horned oryx, evaluated in the study, became the first of those 95 species to be formally downlisted after the research was published.
Professor John Ewen, senior author of the study and researcher at ZSL’s Institute of Zoology, noted that each Extinct in the Wild species faces unique challenges. Success with the oryx does not mean every species can be saved with identical methods. “Saving them requires specific actions tailored to each species,” he said.
More than an antelope — a grassland ecosystem restored
The oryx does something few reintroduced species can claim at scale: it actively maintains the ecosystem it returns to. Through grazing, the oryx keeps grasslands open and slows desertification in the Sahel — one of the regions most exposed to the expanding Sahara. Its return is, in practical terms, a nature-based tool for fighting climate change at the local level.
The Sahara Conservation Fund has monitored this dynamic closely. The oryx does not just occupy habitat — it shapes it. Restoring a keystone grazer to an ecosystem often triggers a cascade of ecological recovery that no targeted intervention could replicate.
Dr. Andrew Terry, ZSL’s Director of Conservation and Policy, framed the moment in terms of what it demands of global policymakers: “You cannot solve biodiversity loss without solving climate change, and you cannot solve climate change without solving biodiversity loss.” The downlisting was announced during COP28, giving it an immediate political resonance.
A long road, and more work ahead
The oryx’s reclassification from Extinct in the Wild to Endangered is a landmark — but Endangered is still a precarious status. The population in Chad remains geographically concentrated, and the threats that erased the species the first time — habitat pressure, poaching, regional instability — have not disappeared. Conservation teams continue post-release monitoring to track herd health and range expansion.
ZSL’s Tim Wacher, who has supported that monitoring work, described the comeback as the result of “in-depth, careful preparation” spanning nearly four decades. The implication is clear: reversals of this scale take generations of commitment, not years. The other 94 species still surviving only under human care are waiting for the same level of resource and resolve.
Still, what the scimitar horned oryx proves — for the first time, with formal IUCN recognition — is that the word “extinct” does not always have to be the last word. With enough coordination, patience, and political will, species can come back. That is not a small thing.
Read more
For more on this story, see: Zoological Society of London
For more from Good News for Humankind, see:
- Renewables now make up at least 49% of global power capacity
- U.K. cancer death rates down to their lowest level on record
- The Good News for Humankind archive on wildlife conservation
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