BTW, I was asked whether it was by purpose that I took a FEMALE penguin sitting on this tennis ball. Not really. The truth is, first I used a male penguin but then I suddenly questioned whether male penguins do hatch eggs. I wasn't quite sure but I still had in my mind that male and female are taking turns between each other. At that time it was already too late to verify (01:00 am) and I was too tired to do proper investigation. In the meantime I verified it. Both penguins are breeding the eggs. While one is hunting for food, the other takes over the breeding job.
