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 ...

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 ...

Frozen wolf pup stomach tissue produced a complete woolly rhino genome, implying stable genetics right before extinction hit fast.

There are no known living males and neither of the two remaining northern white rhinos on Earth - a mother and her daughter living in Kenya. Photo: Courtesy. Scientists working to save the northern ...

Add Yahoo as a preferred source to see more of our stories on Google. Preserving the northern white rhino now requires overcoming functional extinction, as there are only two females remaining. 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 ...

NAIROBI (Reuters) - Scientists working to save the northern white rhinoceros from extinction plan to implant its artificially developed embryos in another, more abundant rhino subspecies in Kenya ...