A couple of years ago, when the Cincinnati Zoo announced that it was going to try to breed two Sumatran rhinos who were brother and sister—Harapan and Suci—the news made international headlines. To many, it brought home just how dire the species’ situation is: Only about a hundred Sumatran rhinos remain in the world.

The news grew even more grim in March of 2014, when the female, Suci, died without having produced a calf. And it became positively desperate last week, when a team of experts declared the species to be extinct in the wild in Malaysia.  The remaining rhinos are scattered in several isolated populations on the neighboring Indonesian island of Sumatra. (Read about