SAN DIEGO, Calif. (KABC) -- Nola, an endangered female white rhinoceros, died Sunday at the San Diego Zoo Safari Park. The San Diego Zoo Global Wildlife Conservancy tweeted out the sad news around 11 ...

An Instagram post about the last two northern white rhinos references a scenario conservationists have warned us about for ...

At Kenya's Ol Pejeta Conservancy in Nanyuki, the last two northern white rhinos - both females - are secured in an enclosure. The northern white rhino, is technically extinct, but the caretakers at ...

Ol Pejeta Conservancy, Kenya (CNN) At first glance, Sudan looks like any other northern white rhino: stout and agile, with square lips. He grazes under the hot sun, his massive head lowered to the ...

For 35 years, American zoologist Laurie Marker has been collecting and storing specimens in a cheetah sperm bank in Namibia, hoping conservationists never have to use them. Rwanda's biggest national ...

Scientists fight to revive the northern white rhino — before it’s too late. The northern white rhino teeters on the brink of extinction. At Ol Pejeta Conservancy and the San Diego Zoo’s Frozen Zoo, ...

In a groundbreaking effort to save the Northern White Rhino from the brink of extinction, scientists have embarked on an ambitious mission-implanting lab-created embryos into surrogate rhinos in hopes ...

EDITOR’S NOTE: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...