If she carries her pregnancy to term, Victoria's calf could be born next summer. Scientists at a San Diego zoo are celebrating the pregnancy of a southern white rhino named Victoria. The pregnancy, ...

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 ...

As sad as it is to acknowledge, there are more than a million animal species on the brink of extinction today, and things are only going to get worse. That means that even with intense efforts to save ...

Veterinarians have successfully harvested eggs from the last two surviving northern white rhinos, taking them one step closer to bringing the species back from the brink of extinction, scientists said ...

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, ...

Johan Marais spots a rhinoceros from a helicopter and shoots it with a tranquilizer dart. Another five minutes will pass before the rhino goes down. A team is ready on the ground to make sure the ...

In a Kenyan wildlife conservancy near the equator, armed guards protect two northern white rhinoceroses, Najin and Fatu. They are the last two northern white rhinos alive—both non-reproductive females ...

Taking the relatively simple step of trimming the horns of wild rhinoceroses is enough to dramatically reduce the rate at which the animals are killed by poachers. "Dehorning rhinos to reduce ...

Marker says the sperm bank at the Cheetah Conservation Fund she founded in the southern African nation is a “frozen zoo” of ...