Most tigers in zoos eat a lot of ground beef, with a schedule of "enrichment items" on a weekly basis like knucklebones or cow femurs and rabbits. However, for a zoo in Russia, it was customary to offer their tiger, Amur, live prey twice a week to eat.
That's what Timur the goat was supposed to be, live prey... to be eaten! But Timur and Amur had other plans, apparently. The zoo staff at the time had no reason to believe that Timur would be an extraordinary goat, as Amur had eaten plenty of goats before.
Alas, this duo has become one of the most unexpected friendship stories between animals in modern times!
To be clear, it was probably Timur who took the lead in changing his destiny.