Rhino diversity: the horns of a dilemma

Lack of genetic diversity has been a problem for millions of years.

Illustration of three rines. One is wooly and brown and has one big horn on its face. The other two are brown and have two horns on their face
This illustration shows a paleoartist’s reconstruction of the three extinct rhinoceros species whose genomes were sequenced as part of the study. In the foreground is a Siberian unicorn (Elasmotherium sibiricum), and close behind are two Merck’s rhinoceroses (Stephanorhinus kirchbergensis). In the far background is a woolly rhinoceros (Coelodonta antiquitatis). Credit: Beth Zaiken