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Science & Nature • Mammals

Northern white rhinoceros

The northern white rhinoceros (Ceratotherium simum cottoni) is a critically endangered subspecies of the white rhinoceros and one of the rarest mammals on Earth.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

The northern white rhinoceros (Ceratotherium simum cottoni) is a critically endangered subspecies of the white rhinoceros and one of the rarest mammals on Earth. As of the latest reports in the provided sources, only two known individuals survive, both females living under protection in Kenya, and the subspecies is generally regarded as functionally extinct.

Taxonomy and naming

The northern white rhinoceros is one of two subspecies of the white rhinoceros, the other being the southern white rhinoceros. Its scientific name is Ceratotherium simum cottoni, and it is also called the northern square-lipped rhinoceros.

Range and habitat

Historically, the subspecies occurred across parts of Central and East Africa. Sources describe its former range as spanning areas from Chad and Sudan to the Democratic Republic of the Congo.

Conservation status

The northern white rhinoceros is listed as critically endangered, and some authorities describe it as possibly extinct in the wild. Recent sources state that only two known individuals remain, both females.

Decline and extinction in the wild

The subspecies suffered a severe population collapse due largely to poaching for its horn. The death of the last known male, Sudan, in 2018 left the subspecies functionally extinct in practice.

Conservation efforts

Current conservation work centers on protecting the two remaining animals and attempting assisted reproduction, including in vitro fertilisation and related reproductive technologies.

Key facts

  • The northern white rhinoceros is a critically endangered subspecies of white rhinoceros, with only two known females surviving.
  • The subspecies' population collapsed due to poaching for horn and habitat loss, and the last known male died in 2018.
  • The two remaining individuals, Najin and Fatu, live under protection at Ol Pejeta Conservancy in Kenya.
  • Conservation efforts focus on assisted reproductive technologies to prevent complete extinction.
  • The subspecies is generally regarded as functionally extinct.
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Canadian context

Canadian readers may encounter the northern white rhinoceros in discussions of global biodiversity loss, wildlife conservation, and endangered species policy; it is a well-known example in international conservation education.

Frequently asked questions

What is the northern white rhinoceros?
It is a subspecies of the white rhinoceros, scientifically named Ceratotherium simum cottoni, and one of the most endangered mammals in the world.
How many northern white rhinos are left?
The provided sources state that only two known individuals remain, both females named Najin and Fatu.
Is the northern white rhino extinct?
It is generally described as functionally extinct, and some sources call it possibly extinct in the wild, but two individuals still survive in managed care.
Where do the last northern white rhinos live?
The two surviving animals live under protection at Ol Pejeta Conservancy in Kenya.
Why did the population collapse?
The main cause was intensive poaching for horn, along with broader habitat pressures and loss.
What is being done to save the subspecies?
Conservationists are using intensive protection and assisted reproductive technologies such as IVF in an effort to preserve genetic material and possibly produce offspring.

References

  1. Fauna & Florahttps://www.fauna-flora.org/species/northern-white-rhino/
    Supports: Two surviving individuals, Sudan's death in 2018, functionally extinct status, historical decline, and current location in Kenya.
  2. Encyclopaedia Britannicahttps://www.britannica.com/animal/Northern-white-rhinoceros
    Supports: Scientific name, subspecies classification, and critically endangered status.
  3. Wikipediahttps://en.wikipedia.org/wiki/Northern_white_rhinoceros
    Supports: Two surviving females, functionally extinct status, and IUCN classification summary.
  4. IFAWhttps://www.ifaw.org/animals/white-rhinos
    Supports: Subspecies classification, historical range, current location of the last two individuals, and critically endangered status.
  5. Save the Rhinohttps://www.savetherhino.org/thorny-issues/can-we-save-the-northern-white-rhino/
    Supports: Critically endangered and possibly extinct in the wild status, two remaining individuals, and assisted reproduction efforts.
  6. Sheldrick Wildlife Trusthttps://www.sheldrickwildlifetrust.org/about/species-we-protect-white-rhinos
    Supports: Functional extinction framing and the existence of two surviving females.