The employees of the aquarium do not yet know whether the cute penguin chick is a male or a female. This can only be determined in a year by a DNA test on the animal. Until then, the little gray beak named "Number 23" has to make do with it. The little rockhopper penguin currently fits on the palm of his human friends, but at three months he will be as tall as his parents. When he grows up, he will also get the decorative yellow head feathers that now adorn the heads of his mom and dad.