In 1977, a rhino was born at Dvůr Králové Zoo. She was named Nasi, and came as a bit of a surprised because her mother, a northern white rhino called Nasima, had only had contact with one male rhino. Why was that so strange? Well, he was an entirely different species. The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.

Hybrids like Nasi crop up from time to time, but as the only known hybrid between a northern and southern white rhino, she really stood out – not least because northern white rhinos are presently on the brink of extinction with just two individuals left. But a solution inspired by Nasi’s very existence hopes to change that.

A world-first attempt at in-vitro fertilization taking a lab-created rhino embryo and transferring

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