All things to nothing descend,
Grow old and die and meet their end...
Nor long shall any name resound
Beyond the grave, unless 't be found
In some clerk's book, it is the pen
Gives immortality to men
(Master Wace (1100 - 1175) - from his Chronicles of the Norman Dukes. Found on the Chart of Harold F Umstott (1907-1922 )
and hopefully rhinos don't have to be a thing in the past and a mere relic in some extinct species encyclopedia. There are only three northern white rhinoceros, or northern square-lipped rhinoceros (Ceratotherium simum cottoni) individuals left in captivity. It is extinct in the wild.