This is a member of the marsupial possum family, and like all members of the family, it is nocturnal.
Yellow-bellied Gliders are about 75 cm from snout to tail tip and weigh about 600 g.
The skin on the side of the body extends out in a flap (somewhat evident in the photo) which is stretched out between the legs to form a “wing”.
They are remarkably at home on vertical tree-trunks.
They climb to tree-tops then glide to the next tree, typically about 30 m but up to 150 m at a time, and are not known to come to ground.
Yellow-bellied Gliders feed on insects and sugary substances – nectar, manna and sap.
A special feature of their lifestyle is the ability to make incisions in the bark of trees – evident in this photo – to obtain sap.

This individual is one of the isolated Australian Wet Tropics population which is thought to be an undescribed subspecies and may number less than 1,000 – it is listed as Vulnerable to extinction.