Panda cubs make debut to mark start of spring

The abandonment of newborn panda cubs was another common problem, as 50 percent of the newborns are typically twins, and the mother would end up caring for only one and abandoning the other cub.

The researchers solved the problem by removing the deserted cub and feeding it milk. They would then switch it with the favored cub from time to time, so the mother unwittingly supported both cubs.