After the delivery, the Mom turned her attention to the pup that had been next to her when she was in labor and right up against her all through the delivery. Normally, I would have expected her to attack the pup for being so close. Sometimes, it is simply barking at the pup, maybe nipping and sometimes, even flinging the baby away by the neck or rear flippers.
This Mom did not do this and was actually doing some of the bonding smelling and talking to the baby that she should be doing with her pup. I have seen a harbor seal have the kind of confusion with two pups next to each other when she delivered. Her pup was the normal 20 pounds and the other pup was older but abandoned pup that was begging for milk and getting up next to her and nudging her to turn over so it could nurse. She actually wound up bonding with the pup that was not her's and abandoning her own pup which lasted on the beach for about a week or so before it died. I was not able to keep track of the Mom and the adopted pup to know how that ended for them.
So I was fully expecting that since she was not attacking this pup and was doing some bonding behavior with it, that she might then attack her pup and abandon it.
However, that did not happen. In the end the Mom seemed to accept both pups. They were both very near the same size, so when i came back the next morning after the birth, i could not tell which pup was her's and which was the adopted pup, but she was nursing both pups. (see more in the next part of the story)