Today's location is Etosha National Park and the focus is on Ollie, an ostrich who emerged from the largest egg in the world. In this part of Africa, the temperature is often over 40 Celsius and Mum had to brood the eggs to keep them cool. Dad helped out too. He is an impressive 2.74 metres tall. Other mothers laid their eggs in the shared nest and one mother could end up caring for as many as 60 chicks. Creches of chicks may get to be as big as 300. Ostrich eyeballs are bigger than their brains; they can see behind themselves without turning their heads. Their feathers do not have the little barbs that join them together, like normal flight feathers. That is why they look so light and fluffy. But when full-grown, Ollie will run at 70 kilometres an hour and cover over 8 metres in a single stride.