Researchers Confirmed Genetic Health of Nubian Giraffes
A new DNA analysis shows that the small Nubian giraffe population in South Sudan maintains high genetic diversity.
Updated on Sept. 29, 2026 in Wildlife
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Scientists have confirmed that the remaining Nubian giraffe population in South Sudan exhibits high levels of genetic diversity and low inbreeding. This finding suggests the subspecies maintains resilience despite a massive population decline over the last four decades.
Why it matters
Understanding the genetic health of these animals is crucial for conservation, as it helps determine if the species can recover without intervention. Researchers conducted the study to ensure inbreeding does not threaten the long-term survival of the subspecies.
Researchers sampled skin biopsies from 30 Nubian giraffes across Boma and Badingilo national parks to assess their DNA. The population has plummeted by 95% between 1985 and 2025, dropping from an estimated 15,000 in 1995 to just 235 today.
The players
Boma National Park
This protected area in South Sudan serves as a primary habitat for the studied giraffe population.
Badingilo National Park
Located in South Sudan, this park acted as a key site for the collection of skin biopsy samples.
The details
The analysis compared genetic data from South Sudan to populations in Ethiopia and Kenya, identifying the White Nile River as a historical corridor for gene flow. These findings indicate that despite the severe population crash, the remaining individuals retain a robust genetic makeup.
Timeline
1985-2025: A period of conflict during which regional giraffe populations declined.
1995: Nubian giraffe numbers were estimated at 15,000 individuals.
2025: Population numbers fell to an estimated 235 individuals.
Culture Shift
This research updates the genetic viability assumptions previously established by the IUCN Red List conservation status assessments for subspecies. It marks a shift from focusing solely on census counts to incorporating deep genomic health into long-term wildlife recovery strategies.
The findings provide valuable data for conservationists looking to stabilize endangered giraffe populations in East Africa. For the general public, this study highlights the ongoing importance of habitat protection in maintaining biodiversity within national parks.
The takeaway
Maintaining genetic diversity is a positive sign for the future, but the drastic decline in total numbers remains the primary threat to the species. Protecting historical migration corridors like the White Nile River is essential for the continued health of these populations.
Further reading
For more information on animal conservation, visit our Wildlife section.
Source note: This article includes information reported by Mongabay.
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