1905 Nov. 208/2 The second or upper horn of the Sumatran rhino is not very prominent.
1994 Sept. 32/2 The Sumatran rhino, also known as the Asian two-horned and the hairy rhino, is the smallest..of the world's five living rhino species.
2018 (Nexis) 20 Dec. The Java Rhino and Sumatran Rhino are on the brink of extinction with only around 67 and 80 respectively left in the wild.