Although Amur has made friends with the goat who was supposed to be his food, he hasn't entirely lost his instinct to kill.
"We still feed Amur live prey twice a week, but we don't give him goats anymore out of respect for Timur," Dmitry Mezentsev told the BBC. Now, his living diet is relegated to strictly rabbits.
If anything is stopping Amur from eating the live goat he shares a bed with, it appears to be Timur's bravery. Nobody ever taught him to fear tigers, so he never showed any sign of weakness in their presence. Apparently, that freaked Amur out.