In this Dec. 31, 2014, file photo, Nola, a 40-year-old northern white rhino who is only one of five remaining of the species, wanders around her enclosure at the San Diego Zoo Safari Park on a ...

Northern White Rhino's Death at San Diego Zoo Leaves Only 3 of Its Kind in the World . Nola was euthanized Sunday, leaving northern white rhinos Najin, Fatu and Sudan.

Sudan is the last male northern white rhino left in the world – and at the advanced age of 45, his deteriorating health is pushing the subspecies a step closer to extinction.

The death of a 45-year-old rhino is rarely a tragedy; they seldom live much longer. Although Sudan’s passing was long expected, it still struck a blow to conservationists all around the world.

Sudan, the last male northern white rhino in the world, died at the age of 45 in Kenya on Tuesday. Just two northern white rhinos remain – Sudan’s daughter and granddaughter. This majestic ...

Nola, one of just four endangered northern white rhinos left in the world, died Sunday at the San Diego Zoo Safari Park. The 41-year-old rhino had been under veterinary care for a bacterial infecti… ...

Following his death, there are just five northern white rhinos left worldwide, all in captivity. Angalifu passed away. 5 northern white rhinos remain #RIP #EndExtinction Pls share condolences.

Liz Edgington, a hoofstock keeper at the Houston Zoo, was worried about Bu. The Southern white rhino's head drooped, and his eyes were downcast. For 35 years, he and Marci were the only rhinos at ...

A white rhino like this one was killed last September at Wild Florida safari park. Photo: Mark Kolbe (Getty Images) The Florida Fish and Wildlife Conservation Commission completed a report on its ...

Today, there are only 27,000 rhinos, about 17,000 of which are southern white rhinos. Some 10,000 rhinos in Africa and Asia have been illegally killed for their horns in the last decade, the zoo says.

Researchers in Kenya successfully transplanted a white rhino embryo into a female surrogate for the first time. The pregnant mother-to-be died from an unrelated illness before she could give birth ...