The Sumatran rhinoceros is not plentiful on the planet: In fact, the Dicerorhinus sumatrensis is down to maybe 100 in the wild and nine in captivity, and most of them live in Indonesia.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/wild-sumatran-rhinos-considered-be-extinct-malaysia
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/nature-world-news
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wildlife
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rhinoceros
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/endangered-species
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/malaysia
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/extinct-species