Did you know that koala fur is useful to other animals? The Brown-headed Honeyeater is one that use koala hair to build their nests. Now, do you know why koala fur is perfect for lining bird nests? 1. Koala fur is highly insulating. A well-insulated nest means warm babies in winter and cool babies in summer. 2. Koala fur is available in the daytime. They sit out, exposed, in a gum-tree all day long – the time when honeyeaters are active. Irresistible. 3. Koala fur is located in trees. A high can