It leaves two surviving females (and some sperm, one assumes from the story), but the future of the species is obvious with such a limited gene pool.
What wasn't reported is the other rhino species that are already extinct.
LONG GONE: Woolly rhinoceros.
GONE: Vietnamese Javan rhinoceros - Went extinct around 2010.
GONE: Northern Sumatran rhinoceros - Extinction date unknown.
GONE: Southern black rhinoceros – Extinct from excessive hunting and habitat destruction around 1850.
GONE: North-eastern black rhinoceros – Disappeared in the early 20th century.
GONE: Chobe black rhinoceros – Possibly a single surviving specimen in Botswana.
GONE: Western black rhinoceros – Extinct. In 2006 a survey failed to find any.
ALMOST GONE: Uganda black rhinoceros – Extinct across most of its former area. Probably surviving in Kenyan reserves.
ALMOST GONE: South-western black rhinoceros – Restricted to wildlife reserves in Namibia, with sporadic sightings in Angola.
A FEW LEFT: Eastern black rhinoceros – Lived in Sudan, Uganda, Ethiopia, Kenya and into north-central Tanzania. Today, is limited to Kenya and Tanzania.
A FEW LEFT: South-central black rhinoceros – Most widely distributed subspecies. Preserved in reserves but extinct in other areas. Reintroduced in Malawi, Botswana, and Zambia.
The losses are a result of the anthropocene era of mass extinctions that scientists started describing decades ago.
And it's not just an African/Asian problem, Australia has its own list of animals lost since 1788 ... https://en.wikipedia.org/wiki/List_of_e ... _Australia
The world list here makes it clear how far the planet has declined ... https://en.wikipedia.org/wiki/List_of_extinct_animals
Interestingly, unicorns did once exist ... https://en.wikipedia.org/wiki/Elasmotherium

Tack on fast climate change, pollution and further habitat destruction and the future is obvious, the list will get longer. What species next?
Hard to understand how "green" came to be a dirty word in politics!