WHY MOTHER BITCH FED ONE PARTICULAR PUP SEPARATELY?

IT'S STRANGE AND STILL A MIRACLE HOW A MOTHER'S LOVE TURNS INTO MILK.THIS IS COMMON PHENOMENA FOR HUMANS AND THE ANIMAL SPECIES.THIS IS A MOTHER BITCH'S STORY.I SAW IT FED THIS PUP MILK SEPARATELY.SHE DID THAT WHO WANTED SAFE OTHER PUPPIES.