3. HURRY UP MUM, I'M HUNGRY

If Mum is not back in time, Dad makes do by feeding his newborn a milky secretion from a gland at the back of his throat. But it's still not enough for a growing baby. Snow Chick is so famished waiting for his mother's return, he pecks at the snow in his desperation for something to fill him up. Mum has been delayed. A leopard seal, the penguin's greatest enemy, had lunged at her through the ice, causing her to get separated from a group of other females. John Downer says: 'This can be critical to their survival. If the mothers are delayed by a day or two, the chicks die of starvation'