Koalas from a population north of the Brisbane River have evolved a unique genomic immunity to the killer retrovirus ...

The amazing ability of dogs to detect and track down specific scents could have profound effects on Australia's koala population. Perhaps surprisingly, koalas are particularly prone to chlamydia.

We'll also travel to Australia to discovery a program aiming to protect koala populations. And we'll see some amazing art made from a unique building material. All this and more on today's CNN 10!