Magnum was born on January 30, 1997, and is the calf of a rhino named Scud, who had lost the use of her right foreleg, possibly by stepping into a hole while at full gallop.
Magnumi sünnitas 1997. aasta 30. jaanuaril Scudi - nimeline ninasarvik, kelle parem esijalg oli vigastatud, mille põhjuseks võis olla täie galopi pealt auku komistamine.