The female calf spent more time in the paddock with the rest of the herd today. The other calves, Luk Chai and Pathi Harn, seem to be more interested with her and Luk chai was seen looping his trunk around hers.
A fire broke out in a service building on the perimeter of Taronga Zoo overnight.
Fire Brigade crews attended and extinguished the fire before 3am.
No people or animals were injured in the fire.
Preliminary investigations have found no suspicious circumstances.