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The resilience that Sudan is showing in the face of adversity is truly remarkable. Yesterday, he came out of his boma, took a stroll in the larger enclosure and grazed peacefully. Our beloved Mzee has clearly not lost the will to live and is not going down without a fight. pic.twitter.com/a6ULh2Nump

— Ol Pejeta (@OlPejeta) March 4, 2018

Sudan's caregivers are continuing to monitor him around the clock, but the possibility that he could be euthanized because of the infection on his leg still looms. The conservancy expressed that it does not want Sudan to \"suffer unnecessarily.\"

Everything possible is being done to help him regain his health. We are very concerned about him - he's extremely old for a rhino and we do not want him to suffer unnecessarily.
We will keep you updated on all developments. Please keep him in your thoughts.

— Ol Pejeta (@OlPejeta) March 1, 2018

Whether Sudan makes it or not, the success of the efforts made by conservationists and scientists to save the northern white rhino from extinction will depend on the health of his daughter Najin and granddaughter Fatu and in vitro fertilization, The Associated Press reported.

\"PHOTO:
Nichole Sobecki for The Washington Post via Getty Images
PHOTO: Mohammed Doyo, head caretaker, caresses Sudan, the last male northern white rhino left on the planet.
>

Fatu's eggs would likely have to be extracted because the rhinos are not able to reproduce naturally, according to the AP. Semen from dead northern white rhinos is being stored in several places around the world.

Northern white rhinos were last seen in the wild at the Garamba National Park in the Congo, which is often targeted by poachers, the AP reported. The subspecies was especially vulnerable due to conflicts that swept through central Africa.

\"PHOTO:
Georgina Goodwin/Barcroft Media via Getty Images
PHOTO: A 15 year old Southern White Rhino, Fatu, and 25 year old Northern White Rhino, Najin, the female White Rhinos that it is hoped Sudan a Northern White Rhinoceros will mate with at the Ol Pejeta Conservancy on June 25, 2015, Laikipia County, Kenya.
>

In 2015, the Ol Pejeta Conservancy told ABC News four armed rangers in Kenya were guarding Sudan after he was acquired by the Dvur Kralove Zoo in the Czech Republic.

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