We are sequencing the genome of a beautiful black rhino. Her name is Ntombi, and she is one of only 5,055 black rhinos alive in the world. Three out of eight original subspecies have been poached to extinction and the remaining five subspecies are critically endangered. With Ntombi's genome sequence we will be able to advance scientists' understanding of this endangered species that has played a critical role in our ecosystem for over 50 million years.