Look at this heroic dog hanging out with a very sad cat.
It could have been fatal.
That's where Macy the dog stepped in.
Cats don't possess the antibodies that reject dogs' blood, so a transfusion can enable them to regenerate their own red blood cells. You can only do this once, but it worked.
"It was one of those situations that it was a do-or-die. He would have died if we did nothing," Ms Heller, Rory's owner told 3news.
Now Rory's feeling much better. And he's got a new BFF.
