A lot of people gripe that saving the baby is not “natural”, they should have let the mother kill it, as she would do in the wild. Well, living in a zoo is not “natural”, either [even though we need them to preserve animal species these days…], and from pics I’ve seen, the mother is muddy. Is the winter there this year milder than normal, where she should be giving birth in the middle of winter, surrounded by ice and snow, this year she didn’t, it was warm. Maybe in the wild, giving birth in a warm spell might be a reason the mother would kill her newborn cub, she was just going to follow her instincts, but in a zoo, she didn’t need to. She and her baby would still have plenty of food, even in a warm winter.