A baby chimpanzee hangs, one-handed, from the mesh roof of a large zoo enclosure while her mum keeps watch from the top of a tree branch nearby.
Another small chimp swings wildly through ropes and disappears into the sparse foliage in the enclosure.
These chimpanzees, and their four-year-old sister, are the darlings of this central Queensland zoo. They're also a vital part of the survival of their species.
