The fates of the black rat and the phasmid are as intertwined as the air roots of a banyan tree. The survival of one is linked to the extermination of the other, and the battle is on.

{For RN Summer we're playing the best programs of the year, and this one first aired in June, 2017}

After 35 years, some of the same sleepy lizards are still alive, still with the same lizard partner. Now, they will have a new scientist.

{For RN Summer we're playing the best programs of the year, and this one first aired in April, 2017}

How does a fish the size of a toothbrush head, with bright red fins and big blue eyes, end up living in a puddle of water in the middle of the Australian outback? This story is about one of the rarest fish species in the world, and it's simply epic. {For RN Summer we're playing the best programs of the year, and this one first aired in May, 2017}

The public have spoken, and the Magpie is the winner of the Bird of the Year for 2017. So let's hear from the magpies themselves.

Plucked direct from the Off Track archives so that you can better understand 2017's bird of the year: the magpie.