There are so many koalas in some places that food is the issue – while elsewhere populations are threatened by habitat loss. And there are no easy fixes ...

Koalas might appear to be all cuddly and sleepy, but these star Australian marsupials are full of interesting surprises. Slightly resembling teddy bears, these marsupials are tree-climbing mammals ...

High in the eucalyptus trees of Australia, koalas (Phascolarctos cinereus) are often seen curled into tight, fluffy balls, barely moving for hours at a time.

The Associated Press on invasive species and flooding It's not as immediately noticeable as, say, fallen trees or washed away roads, but the spread of invasive species after floods may be just as ...

Two world-class institutions that call San Diego home have joined forces on an investigation into the DNA of koalas. The San Diego Zoo Wildlife Alliance and DNA-sequencing giant Illumina are examining ...